Journal articles: 'Single-wall carbon nanotubes'

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Prasad, Shiva, Harish Venkat Reddy, and Ashok Godekere. "Properties of Carbon Nanotubes and their applications in Nanotechnology – A Review." Mapana Journal of Sciences 20, no. 4 (October 1, 2021): 49–64. http://dx.doi.org/10.12723/mjs.59.4.

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One of the most distinctive inventions in the world of nanotechnology is the carbon nanotube (CNT). Many scholars around the world have been studying carbon nanotubes (CNTs) over the past two decades due to their enormous potential in a variety of sectors. Single-wall CNTs with dimensions in the nanometer range are commonly referred to as carbon nanotubes. Carbon nanotubes are also known as multi-wall CNTs, which are made up of nested single-wall CNTs that are weakly bonded together in a tree ring-like structure by van der Waals interactions. Tubes having an unknown carbon wall structure and diameters smaller than 100 nanometers are also referred to as carbon nanotubes. A carbon nanotube's length is often substantially longer than its diameter, according to standard manufacturing methods. Carbon nanotubes are capable of exhibiting a variety of remarkable properties. CNTs have distinct electrical, mechanical and optical properties that have all been thoroughly investigated. The properties and applications of carbon nanotubes are the focus of this review.

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BULASHEVICH, K. A., R. A. SURIS, and S. V. ROTKIN. "EXCITONS IN SINGLE-WALL CARBON NANOTUBES." International Journal of Nanoscience 02, no. 06 (December 2003): 521–26. http://dx.doi.org/10.1142/s0219581x03001632.

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Excitonic states in single-wall carbon nanotubes have been studied within the tight-binding approximation. An analytical expression for the dielectric function of the nanotube has been obtained in the random phase approximation. It was demonstrated that calculations with the static dielectric function yield an overestimated exciton binding energy exceeding the nanotube energy gap. Self-consistent calculation of the exciton binding energy with the frequency-dependent dielectric function has been performed. The binding energy to energy gap ratio has been shown to have no dependence on the nanotube radius and to be a universal constant ~0.87 for given resonance integral γ0=2.7 eV .

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McEuen, Paul L. "Single-wall carbon nanotubes." Physics World 13, no. 6 (June 2000): 31–36. http://dx.doi.org/10.1088/2058-7058/13/6/26.

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Lukes, Jennifer R., and Hongliang Zhong. "Thermal Conductivity of Individual Single-Wall Carbon Nanotubes." Journal of Heat Transfer 129, no. 6 (September 15, 2006): 705–16. http://dx.doi.org/10.1115/1.2717242.

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Despite the significant amount of research on carbon nanotubes, the thermal conductivity of individual single-wall carbon nanotubes has not been well established. To date only a few groups have reported experimental data for these molecules. Existing molecular dynamics simulation results range from several hundred to 6600 W∕m K and existing theoretical predictions range from several dozens to 9500 W∕m K. To clarify the several-order-of-magnitude discrepancy in the literature, this paper utilizes molecular dynamics simulation to systematically examine the thermal conductivity of several individual (10, 10) single-wall carbon nanotubes as a function of length, temperature, boundary conditions and molecular dynamics simulation methodology. Nanotube lengths ranging from 5 nm to 40 nm are investigated. The results indicate that thermal conductivity increases with nanotube length, varying from about 10 W∕m to 375 W∕m K depending on the various simulation conditions. Phonon decay times on the order of hundreds of fs are computed. These times increase linearly with length, indicating ballistic transport in the nanotubes. A simple estimate of speed of sound, which does not require involved calculation of dispersion relations, is presented based on the heat current autocorrelation decay. Agreement with the majority of theoretical/computational literature thermal conductivity data is achieved for the nanotube lengths treated here. Discrepancies in thermal conductivity magnitude with experimental data are primarily attributed to length effects, although simulation methodology, stress, and intermolecular potential may also play a role. Quantum correction of the calculated results reveals thermal conductivity temperature dependence in qualitative agreement with experimental data.

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Smith, Brian W., and David E. Luzzi. "Encapsulated Fullerenes Within Single Wall Carbon Nanotubes." Microscopy and Microanalysis 5, S2 (August 1999): 182–83. http://dx.doi.org/10.1017/s1431927600014239.

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It is well documented that the pulsed laser vaporization of graphite produces both carbon nanotubes and C60 in the presence of certain metallic catalysts. In nanotube production most of the Ceo is removed along with other residual contaminants during succeeding purification and annealing steps. The possibility of C60 becoming trapped inside a nanotube during this elaborate sequence has been considered but not previously detected.Nanotubes are observed with high resolution transmission electron microscopy under conditions chosen to minimize both exposure time and irradiation damage. Since a nanotube satisfies the weak phase object approximation, its image is a projection of the specimen -potential in the direction of the electron beam. The image has maximum contrast where the beam encounters the most carbon atoms, which occurs where it is tangent to the tube’s walls. Thus, the image consists of two dark parallel lines whose separation is equal to the tube diameter, 1.4 nm.

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Chattopadhyay, Jayanta, Anil K. Sadana, Feng Liang, Jonathan M. Beach, Yunxuan Xiao, Robert H. Hauge, and W. E. Billups. "Carbon Nanotube Salts. Arylation of Single-Wall Carbon Nanotubes." Organic Letters 7, no. 19 (September 2005): 4067–69. http://dx.doi.org/10.1021/ol050862a.

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Umapathi, K., Yalamanchili Sangeetha, A. N. Shankar, P. Vidhyalakshmi, R. Ramkumar, S. Balakumar, and D. Magdalinmary. "Computational Investigations of Fixed-Free and Fixed-Fixed Types Single-Wall Carbon Nanotube Mass Sensing Biosensor." Advances in Materials Science and Engineering 2021 (June 22, 2021): 1–13. http://dx.doi.org/10.1155/2021/3253365.

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Using carbon nanotubes for sensing the mass in a biosensor is recently proven as an emerging technology in healthcare industry. This study investigates relative frequency shifts and sensitivity studies of various biological objects such as insulin hormone, immunoglobulin G (IgG), the most abundant type of antibody, and low-density lipoproteins (LDL) masses using the single-wall carbon nanotubes as a biomass sensor via continuum mechanics. Uniform distributed mass is applied to the single-wall carbon nanotube mass sensor. In this study, fixed-free and fixed-fixed type single-wall carbon nanotubes with various lengths of relative frequency shifts are studied. Additionally, the sensitivity analysis of fixed-free and fixed-fixed type CNT biological mass sensors is carried out. Moreover, mode shapes studies are performed. The sensitivity results show better, if the length of the single-wall carbon nanotube is reduced.

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Mananghaya, Michael, Emmanuel Rodulfo, Gil Nonato Santos, and Al Rey Villagracia. "Theoretical Investigation on the Solubilization in Water of Functionalized Single-Wall Carbon Nanotubes." Journal of Nanotechnology 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/780815.

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An important technique to increase the solubility and reactivity of carbon nanotube is through functionalization. In this study, the effects of functionalization of some single-walled carbon nanotubes (SWCNTs) were investigated with the aid of density functional theory. The SWCNT model used in the study consists of a finite, (5, 0) zigzag nanotube segment containing 60 C atoms with hydrogen atoms added to the dangling bonds of the perimeter carbons. There are three water-dispersible SWCNTs used in this study that were functionalized with (a) formic acid, as a model of carboxylic acid, (b) isophthalic acid, as a model aromatic dicarboxylic acid, and (c) benzenesulfonic acid, as a model aromatic sulfonic acid. Binding energies of the organic radicals to the nanotubes are calculated, as well as the HOMO-LUMO gaps and dipole moments of both nanotubes and functionalized nanotubes. Binding was found out to be thermodynamically favorable. The functionalization increases the electrical dipole moments and results in an enhancement in the solubility of the nanotubes in water manifested through favorable changes in the free energies of solvation. This should lower the toxicity of nanotubes and improve their biocompatibility.

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ERKOÇ, ŞAKIR. "FROM CARBON NANOTUBES TO CARBON NANORODS." International Journal of Modern Physics C 11, no. 06 (September 2000): 1247–55. http://dx.doi.org/10.1142/s0129183100001061.

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The structural properties of single and multi-wall carbon nanotubes and the formation of carbon nanorods from multi-wall carbon nanotubes have been investigated by performing molecular-dynamics computer simulations. Calculations have been realized by using an empirical many-body potential energy function for carbon. It has been found that carbon nanorod formation takes place with smallest possible multi-wall nanotubes under heat treatment. On the other hand, it has been also found that single-wall carbon nanotubes are stronger than the multi-wall nanotubes against heat treatment.

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Monthioux, M. "Filling single-wall carbon nanotubes." Carbon 40, no. 10 (August 2002): 1809–23. http://dx.doi.org/10.1016/s0008-6223(02)00102-1.

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Zheng, L. X., M. J. O'Connell, S. K. Doorn, X. Z. Liao, Y. H. Zhao, E. A. Akhadov, M. A. Hoffbauer, et al. "Ultralong single-wall carbon nanotubes." Nature Materials 3, no. 10 (September 12, 2004): 673–76. http://dx.doi.org/10.1038/nmat1216.

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Srivastava and, Deepak, Chenyu Wei, and Kyeongjae Cho. "Nanomechanics of carbon nanotubes and composites." Applied Mechanics Reviews 56, no. 2 (March 1, 2003): 215–30. http://dx.doi.org/10.1115/1.1538625.

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Computer simulation and modeling results for the nanomechanics of carbon nanotubes and carbon nanotube-polyethylene composite materials are described and compared with experimental observations. Young’s modulus of individual single-wall nanotubes is found to be in the range of 1 TPa within the elastic limit. At room temperature and experimentally realizable strain rates, the tubes typically yield at about 5–10% axial strain; bending and torsional stiffness and different mechanisms of plastic yielding of individual single-wall nanotubes are discussed in detail. For nanotube-polyethylene composites, we find that thermal expansion and diffusion coefficients increase significantly, over their bulk polyethylene values, above glass transition temperature, and Young’s modulus of the composite is found to increase through van der Waals interaction. This review article cites 54 references.

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Kono, Junichiro. "(Invited, Digital Presentation) Macroscopically Aligned Carbon Nanotubes for Photonics, Electronics, and Thermoelectrics." ECS Meeting Abstracts MA2022-01, no. 10 (July 7, 2022): 775. http://dx.doi.org/10.1149/ma2022-0110775mtgabs.

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The remarkable flexibility, stable chemical structure, and extraordinary thermal, electrical, and optical properties of carbon nanotubes (CNTs) are promising for a variety of applications in flexible and/or high-temperature electronics, optoelectronics, and thermoelectrics, including wearables, refractory photonics, and waste heat harvesting [1]. However, the long-standing goal in the preparation of CNT ensembles is how to maintain the extraordinary properties of individual CNTs on a macroscopic scale. The polydispersity and randomness remain two main challenges. Here, we will discuss different methods for creating macroscopically aligned CNTs, including spontaneous formation of wafer-scale aligned CNT films via controlled vacuum filtration [2-4] and production of ultrahigh-conductivity CNT fibers and films through solution spinning and coating [5,6]. We will then describe the optical [2,7-11], dc and ac electrical [2,12-17], thermal [18], and thermoelectric [19-21] properties of these materials. These results are promising for device applications in various fields such as flexible CNT broadband detectors [22-26], spectrally selective thermal emitters [11], and thermoelectric devices [20,21]. W. Gao et al., “Macroscopically Aligned Carbon Nanotubes for Flexible and High-Temperature Electronics, Optoelectronics, and Thermoelectrics,” Journal of Physics D: Applied Physics 53, 063001 (2020). X. He et al., “Wafer-Scale Monodomain Films of Spontaneously Aligned Single-Walled Carbon Nanotubes,” Nature Nanotechnology 11, 633 (2016). W. Gao and J. Kono, “Science and Applications of Wafer-Scale Crystalline Carbon Nanotube Films Prepared through Controlled Vacuum Filtration,” Royal Society Open Science 6, 181605 (2019). N. Komatsu et al., “Groove-Assisted Global Spontaneous Alignment of Carbon Nanotubes in Vacuum Filtration,” Nano Letters 20, 2332 (2020). N. Behabtu et al., “Strong, Light, Multifunctional Fibers of Carbon Nanotubes with Ultrahigh Conductivity,” Science 339, 182 (2013). L. W. Taylor et al., “Improved Properties, Increased Production, and the Path to Broad Adoption of Carbon Nanotube Fibers,” Carbon 171, 689 (2021). K. Yanagi et al., “Intersubband Plasmons in the Quantum Limit in Gated and Aligned Carbon Nanotubes,” Nature Communications 9, 1121 (2018). W. Gao et al., “Continuous Transition between Weak and Ultrastrong Coupling through Exceptional Points in Carbon Nanotube Microcavity Exciton–Polaritons,” Nature Photonics 12, 362 (2018). M. E. Green et al., “Bright and Ultrafast Photoelectron Emission from Aligned Single-Wall Carbon Nanotubes through Multiphoton Exciton Resonance,” Nano Letters 19, 158 (2019). F. Katsutani et al., “Direct Observation of Cross-Polarized Excitons in Aligned Single-Chirality Single-Wall Carbon Nanotubes,” Physical Review B 99, 035426 (2019). W. Gao et al., “Macroscopically Aligned Carbon Nanotubes as a Refractory Platform for Hyperbolic Thermal Emitters,” ACS Photonics 6, 1602 (2019). X. Wang et al., “High-Ampacity Power Cables of Tightly-Packed and Aligned Carbon Nanotubes,” Advanced Functional Materials 24, 3241 (2014). A. Zubair et al., “Carbon Nanotube Fiber Terahertz Polarizer,” Applied Physics Letters 108, 141107 (2016). D. Tristant et al., “Enlightening the Ultrahigh Electrical Conductivities of Doped Double-Wall Carbon Nanotube Fibers by Raman Spectroscopy and First-Principles Calculations,” Nanoscale 18, 19668 (2016). N. Komatsu et al., “Modulation-Doped Multiple Quantum Wells of Aligned Single-Wall Carbon Nanotubes,” Advanced Functional Materials 27, 1606022 (2017). F. R. G. Bagsican et al., “Terahertz Excitonics in Carbon Nanotubes: Exciton Autoionization and Multiplication,” Nano Letters 20, 3098 (2020). A. Baydin et al., “Giant Terahertz Polarization Rotation in Ultrathin Films of Aligned Carbon Nanotubes,” Optica 8, 760 (2021). S. Yamaguchi et al., “One-Directional Thermal Transport in Densely Aligned Single-Wall Carbon Nanotube Films,” Applied Physics Letters 115, 223104 (2019). K. Fukuhara et al., “Isotropic Seebeck Coefficient of Aligned Single-Wall Carbon Nanotube Films,” Applied Physics Letters 113, 243105 (2018). Y. Ichinose et al., “Solving the Thermoelectric Trade-Off Problem with Metallic Carbon Nanotubes,” Nano Letters 19, 7370 (2019). N. Komatsu et al., “Macroscopic Weavable Fibers of Carbon Nanotubes with Giant Thermoelectric Power Factor,” Nature Communications 12, 4931 (2021). S. Nanot et al., “Broadband, Polarization-Sensitive Photodetector Based on Optically-Thick Films of Macroscopically Long, Dense, and Aligned Carbon Nanotubes,” Scientific Reports 3, 1335 (2013). X. He et al., “Photothermoelectric p-n Junction Photodetector with Intrinsic Broadband Polarimetry Based on Macroscopic Carbon Nanotube Films,” ACS Nano 7, 7271 (2013). X. He et al., “Carbon Nanotube Terahertz Detector,” Nano Letters 14, 3953 (2014). X. He, F. Léonard, and J. Kono, “Uncooled Carbon Nanotube Photodetectors,” Advanced Optical Materials 3, 989 (2015). A. Zubair et al., “Carbon Nanotube Woven Textile Photodetector,” Physical Review Materials 2, 015201 (2018).

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Lei, Kunhua, Ali A. Alizadehmojarad, Sergei M. Bachilo, and R. Bruce Weisman. "DNA Wrapping Causes Strain in Single-Wall Carbon Nanotubes." ECS Meeting Abstracts MA2022-01, no. 9 (July 7, 2022): 719. http://dx.doi.org/10.1149/ma2022-019719mtgabs.

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Short strands of single-stranded DNA (ssDNA) can disperse and individually suspend single-wall carbon nanotubes (SWCNTs) to form a class of hybrids with unusual properties and applications in nanotube structural sorting and fluorescence-based bioanalysis. In these hybrids, the ssDNA strands tend to physisorb onto the nanotube surface, coating it in helical or ring-shaped structures. We have carefully compared fluorescence spectral peak positions in samples of SWCNTs coated by ssDNA and in conventional surfactants such as SDS. In addition to the general and well-known spectral red-shift for the ssDNA-coated samples, we find a systematic dependence of both the E11 and E22 shifts on the mod 1 vs. mod 2 identity of the (n,m) species. This spectral pattern is characteristic of SWCNTs that are distorted by mechanical strain. We infer that the ssDNA wrapping exerts radial forces on the nanotube, causing this strain. The magnitude of the observed effect depends on the ssDNA oligo and on SWCNT diameter, with large values found for (GT)6 and nanotubes with diameters near 0.9 nm. Atomistic molecular dynamics simulations show that (GT)6 forms rings when coating such SWCNTs. Further insights into strain in ssDNA/SWCNT hybrids will be presented based on additional computations and experimental results.

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Vobornik, Dusan, Maohui Chen, Shan Zou, and Gregory P. Lopinski. "Measuring the Diameter of Single-Wall Carbon Nanotubes Using AFM." Nanomaterials 13, no. 3 (January 24, 2023): 477. http://dx.doi.org/10.3390/nano13030477.

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In this work, we identify two issues that can significantly affect the accuracy of AFM measurements of the diameter of single-wall carbon nanotubes (SWCNTs) and propose a protocol that reduces errors associated with these issues. Measurements of the nanotube height under different applied forces demonstrate that even moderate forces significantly compress several different types of SWCNTs, leading to errors in measured diameters that must be minimized and/or corrected. Substrate and nanotube roughness also make major contributions to the uncertainty associated with the extraction of diameters from measured images. An analysis method has been developed that reduces the uncertainties associated with this extraction to <0.1 nm. This method is then applied to measure the diameter distribution of individual highly semiconducting enriched nanotubes in networks prepared from polyfluorene/SWCNT dispersions. Good agreement is obtained between diameter distributions for the same sample measured with two different commercial AFM instruments, indicating the reproducibility of the method. The reduced uncertainty in diameter measurements based on this method facilitates: 1) determination of the thickness of the polymer layer wrapping the nanotubes and 2) measurement of nanotube compression at tube–tube junctions within the network.

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Flamant, G., M. Bijeire, and D. Luxembourg. "Modeling of a Solar Reactor for Single-Wall Nanotube Synthesis." Journal of Solar Energy Engineering 128, no. 1 (May 9, 2005): 24–29. http://dx.doi.org/10.1115/1.1949623.

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Experimental results with a 50kW solar reactor producing 10-15g∕h single-wall carbon nanotube’s rich soot have shown that good quality product was obtained with helium and rather bad product with argon. This result is explained using a computational fluid dynamics model of the reactor accounting for fluid flow, heat transfer, and mass transfer. The bad results in argon were linked to the quenching of carbon vapor in the vaporization zone that resulted in the growth of carbon nanoparticles in spite of carbon-metal clusters (single-wall carbon nanotube precursor). By contrast, the vaporized materials (C, Ni, and Co species) at the target surface were well mixed in helium, and single-wall carbon nanotubes (SWNTs) might grow in the annealing and cooling zone at the backside of the reactor. The same numerical approach may be used to design modifications of the reactor in order to favor the growth of SWNTs.

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Jovanovic, Svetlana, Zoran Markovic, Duska Kleut, Dragana Tosic, Dejan Kepic, Milena Marinovic-Cincovic, Ivanka Holclajtner-Antunovic, and Biljana Todorovic-Markovic. "Covalent modification of single wall carbon nanotubes upon gamma irradiation in aqueous media." Chemical Industry 65, no. 5 (2011): 479–87. http://dx.doi.org/10.2298/hemind110531050j.

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Single wall carbon nanotubes (SWCNTs) were exposed to gamma radiation, absorbing the doses of 25, 50 and 100 kGy in aqueous environment. After the irradiation treatment, the changes in the structure were studied using Fourier Transform Infrared and Raman spectroscopy, thermogravimetric analysis and atomic force microscopy. Fourier Transform Infrared Spectroscopy has shown that the irradiation of SWCNTs in aqueous environment leads to covalent functionalization of SWCNTs. The irradiation of water leads to its radiolysis and the formation of free radical species of different types. These species react with nanotube sidewalls and in such way carboxylic and hydroxylic groups are covalently bonded to the sidewalls of SWCNTs. Thermogravimetric analysis was used to estimate the total amount of covalently bonded groups. The highest ratio of covalently bonded groups appears in nanotubes irradiated with the 100 kGy dose. Raman spectroscopy proves that the increase in irradiation doses leads to an increase of structural disorder of SWCNTs, presumably in the form of defects in carbon nanotube walls. Examination of ID to IG ratio shows a three times larger degree of structural disorder after the irradiation treatment with 100 kGy. The analysis of carbon nanotube Raman spectra RBM bands determined the presence of both semiconducting and metallic carbon nanotubes after gamma irradiation treatment. These measurements prove that gamma irradiation treatments have a nonselective effect regarding different chirality and therefore conductance of nanotubes. Atomic force microscopy shows a significant carbon nanotube shortening as the effect of gamma radiation treatment. Nanotubes with length between 500 nm and 1 ?m are predominant.

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HUH, JEEHYANG, and HOON HUH. "EFFECT OF HELICITY ON THE BUCKLING BEHAVIOR OF SINGLE-WALL CARBON NANOTUBES." International Journal of Modern Physics B 22, no. 31n32 (December 30, 2008): 5872–77. http://dx.doi.org/10.1142/s0217979208051303.

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Simulations of single-wall carbon nanotube(SWCNT)s having a different chiral vector under axial compression were carried out based on molecular dynamics to investigate the effect of the helicity on the buckling behavior. Calculation was performed at room temperature for (8,8) armchair, (14,0) zigzag and (6,10) chiral single-wall carbon nanotubes. The Tersoff potential was used as the interatomic potential since it describes the C - C bonds in carbon nanotubes reliably. A conjugate gradient (CG) method was used to obtain the equilibrium configuration. Compressive force was applied at the top of a nanotube by moving the top-most atoms downward with the constant velocity of 10m/s. The buckling load, the critical strain, and the Young's modulus were calculated from the result of MD simulation. A zigzag carbon nanotube has the largest Young's modulus and buckling load, while a chiral carbon nonotube has the lowest values.

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Gul, Taza, Muhammad Waqas, Waqas Noman, Zafar Zaheer, and Iraj S. Amiri. "The carbon-nanotube nanofluid sprayed on an unsteady stretching cylinder together with entropy generation." Advances in Mechanical Engineering 11, no. 12 (December 2019): 168781401989445. http://dx.doi.org/10.1177/1687814019894454.

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The water-based single- and multiple-wall carbon nanotubes nanofluid over the surface of an unsteady stretched cylinder has been studied. The thin film of the carbon-nanotube nanofluid has been focused for the heat transfer enhancement applications. The well-known thermal conductivity model for the revolving tube materials like single- and multiple-walled carbon nanotubes defined by Xue were used. The modeled problem has been solved through the optimal homotopy analysis method using the BVPh 2.0 package. The distribution of the thin layer has been regulated through the pressure term using the variable thickness of the nanoliquid. The entropy generation has mainly focused during the motion of the thin layer for the both sorts of carbon nanotubes. The important features of the entropy generation and Bejan number under the influence of the physical constraints have been compared for the both types of single-wall carbon nanotubes and multiple-wall carbon nanotubes and discussed. The well-known BVPh 2.0 package of the optimal homotopy analysis method has been used to find the outcomes.

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Adhikari, Chandra M., and Igor V. Bondarev. "Optical Response of Ultrathin Periodically Aligned Single-Wall Carbon Nanotube Films." MRS Advances 5, no. 52-53 (2020): 2685–91. http://dx.doi.org/10.1557/adv.2020.234.

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AbstractWe present a semi-analytical expression for the dielectric response function of quasi-2D ultrathin films of periodically aligned single-walled carbon nanotubes. We derive the response function in terms of the individual nanotube conductivity, plasma frequency, and the volume fraction of carbon nanotubes in the film. The real part of the dielectric response function is negative for a sufficiently wide range of the incident photon energy, indicating that the film behaves as a hyperbolic metamaterial. Inhomogeneous broadening increases the effect.

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Dmitruk, N. "Au/GaAs photovoltaic structures with single-wall carbon nanotubes on the microrelief interface." Semiconductor physics, quantum electronics and optoelectronics 18, no. 1 (March 25, 2015): 31–35. http://dx.doi.org/10.15407/spqeo18.01.031.

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Moradian, Rostam, and Ali Fathalian. "Ferromagnetic semiconductor single-wall carbon nanotubes." Nanotechnology 17, no. 8 (March 15, 2006): 1835–42. http://dx.doi.org/10.1088/0957-4484/17/8/005.

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Loyola, Mark L., Ma Louise Antonette Navarro De Las Peñas, and Antonio M. Basilio. "Colorings of single-wall carbon nanotubes." Zeitschrift für Kristallographie - Crystalline Materials 227, no. 10 (October 2012): 672–80. http://dx.doi.org/10.1524/zkri.2012.1531.

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Mickelson, E. T., C. B. Huffman, A. G. Rinzler, R. E. Smalley, R. H. Hauge, and J. L. Margrave. "Fluorination of single-wall carbon nanotubes." Chemical Physics Letters 296, no. 1-2 (October 1998): 188–94. http://dx.doi.org/10.1016/s0009-2614(98)01026-4.

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Jaiswal, Manu, C. S. Suchand Sangeeth, and Reghu Menon. "Electroconductance in single-wall carbon nanotubes." Applied Physics Letters 95, no. 3 (July 20, 2009): 032111. http://dx.doi.org/10.1063/1.3186082.

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Williams, K. A., M. Tachibana, J. L. Allen, L. Grigorian, S.-C. Cheng, S. L. Fang, G. U. Sumanasekera, A. L. Loper, J. H. Williams, and P. C. Eklund. "Single-wall carbon nanotubes from coal." Chemical Physics Letters 310, no. 1-2 (August 1999): 31–37. http://dx.doi.org/10.1016/s0009-2614(99)00725-3.

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Shi, Zujin, Yongfu Lian, Fuhui Liao, Xihuang Zhou, Zhennan Gu, Yaogang Zhang, and Sumio Iijima. "Purification of single-wall carbon nanotubes." Solid State Communications 112, no. 1 (August 1999): 35–37. http://dx.doi.org/10.1016/s0038-1098(99)00278-1.

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Yu, H. Y., S. H. Jhang, Y. W. Park, A. Bittar, H. J. Trodahl, and A. B. Kaiser. "Properties of single-wall carbon nanotubes." Synthetic Metals 121, no. 1-3 (March 2001): 1223–24. http://dx.doi.org/10.1016/s0379-6779(00)00883-3.

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de Juan, Alberto, Yann Pouillon, Luisa Ruiz-González, Almudena Torres-Pardo, Santiago Casado, Nazario Martín, Ángel Rubio, and Emilio M. Pérez. "Mechanically Interlocked Single-Wall Carbon Nanotubes." Angewandte Chemie International Edition 53, no. 21 (April 11, 2014): 5394–400. http://dx.doi.org/10.1002/anie.201402258.

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de Juan, Alberto, Yann Pouillon, Luisa Ruiz-González, Almudena Torres-Pardo, Santiago Casado, Nazario Martín, Ángel Rubio, and Emilio M. Pérez. "Mechanically Interlocked Single-Wall Carbon Nanotubes." Angewandte Chemie 126, no. 21 (April 11, 2014): 5498–504. http://dx.doi.org/10.1002/ange.201402258.

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Marquis, Fernand D. S. "Carbon Nanotube Nano Composites for Multifunctional Applications." Materials Science Forum 561-565 (October 2007): 1397–402. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1397.

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Owing to their exceptional stiffness, strength, thermal and electrical conductivity, carbon nanotubes have the potential for the development of nano composites materials for a wide variety of applications. In order to achieve the full potential of carbon nanotubes for structural, thermal and electrical multifunctional applications, both single wall carbon nanotubes (SWNTs), double wall nanotubes (DWNTs) and multi wall nanotubes (MWNTs) need to be developed into fully integrated carbon nanotube composites. Full integration of nanotubes requires their development beyond conventional composites so that the level of the non-nanotube material is designed to integrate fully with the amount of nanotubes and where the nanotubes are part of the matrix rather than a differing component, as in the case of conventional composites. In order to advance the development of multifunctional materials from nanotubes, this research is focused on the simultaneous control of structural properties, thermal and electrical conductivity of fully integrated carbon nanotube composites. These are hybrid material systems designed to surpass the limits of rule of mixtures engineering and composite design. The goals are to implement designs to fully mimic the properties of carbon nanotubes on larger scales for enhanced thermal and electrical management in addition to controlled strength and toughness. These new approaches involve, functionalization, dispersion, stabilization, alignment, polymerization and reaction bonding, in order to achieve full integration. Typical examples of polymeric and ceramic matrices, as well as other material systems are presented and discussed.

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32

Kodolova-Chukhontseva, Vera Vladimirovna, Mikhail Alexandrovich Shishov, Konstantin Andreevich Kolbe, Natalia Vladimirovna Smirnova, Irina Petrovna Dobrovol’skaya, Elena Nikolaevna Dresvyanina, Sergei Gennadievich Bystrov, et al. "Conducting Composite Material Based on Chitosan and Single-Wall Carbon Nanotubes for Cellular Technologies." Polymers 14, no. 16 (August 12, 2022): 3287. http://dx.doi.org/10.3390/polym14163287.

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Biocompatible electrically conducting chitosan-based films filled with single-wall carbon nanotubes were obtained. Atomic force microscopic studies of the free surface topography revealed a change in the morphology of chitosan films filled with single-wall carbon nanotubes. Introducing 0.5 wt.% of single-wall carbon nanotubes into chitosan results in an increase in tensile strength of the films (up to ~180 MPa); the tensile strain values also rise up to ~60%. It was demonstrated that chitosan films containing 0.1–3.0 wt.% of single-wall carbon nanotubes have higher conductivity (10 S/m) than pure chitosan films (10−11 S/m). The investigation of electrical stimulation of human dermal fibroblasts on chitosan/single-wall carbon nanotubes film scaffolds showed that the biological effect of cell electrical stimulation depends on the content of single-walled carbon nanotubes in the chitosan matrix.

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33

Ani, Mohd Hanafi, Muhammad Zakhuan Zulkeflee, Akbar Kaderi, Agus Geter Edy Sutjipto, and Nurjannah Salim. "Multiwall Carbon Nanotubes Based Triboelectric Nanogenerators." Materials Science Forum 1056 (March 14, 2022): 33–38. http://dx.doi.org/10.4028/p-33bt35.

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Nanogenerators are a tiny device that can harvest small-scale ambient energies. Carbon nanotubes (CNTs) have been integrated into the device to boost the performance and increasing the efficiency of harvested electrical energy. Multiwall carbon nanotubes (MWCNT) have lower electrical properties compared to single wall carbon nanotubes (SWCNT). However, single wall carbon nanotube is difficult to grow in mass scale and subject to higher production cost. This paper aims to use MWCNT as an active material in triboelectric nanogenerator. The samples were prepared by spin coating of MWCNT on ITO glass at various concentrations. XRD result shows that MWCNT mainly present at crystal planes of (0 0 2), (1 0 0) and (0 0 4). The device has produced maximum current density of 165 μAm-2, and power density of 1,289 μWm-2. Apparently, the concentration of MWCNT in the solution to fabricate the device plays critical roles on the current output of the device. The application of multiwall carbon nanotube based triboelectric nanogenerator is promising for low cost self-powered nanogenerators.

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RAMESH, PALANISAMY, KENICHI SATO, YUJI OZEKI, MASAHITO YOSHIKAWA, NAOKI KISHI, TOSHIKI SUGAI, and HISANORI SHINOHARA. "MICROSCOPIC CHARACTERIZATION OF THIN-MULTIWALL CARBON NANOTUBES SYNTHESIZED BY CATALYTIC CVD METHOD WITH MESOPOROUS SILICA." Nano 01, no. 03 (November 2006): 207–12. http://dx.doi.org/10.1142/s1793292006000227.

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Carbon nanotubes with 1–6 walls have been grown on cobalt-loaded mesoporous silica (i.e., MCM41) by using acetylene catalytic chemical vapor deposition. It is found that titanium grafting on the MCM41 pore walls prior to cobalt loading promotes the growth of nanotubes with 1–6 walls. As-grown nanotube material is found to be a mixture of single-wall carbon nanotubes (SWNTs), double-wall carbon nanotubes (DWNTs) and thin-multiwall carbon nanotubes (t-MWNTs) with 3–6 walls. Annealing of the as-grown nanotubes has reduced the amount of SWNTs in the nanotube mixture. Several structural deformations of the t-MWNTs are observed during transmission electron microscopy (TEM) analysis. Complete or partial collapse of the t-MWNTs is also found due to these structural deformations. Graphite-like domains developed at the collapsed regions stabilize these structural deformations.

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35

Mierczynska, A., J. Friedrich, H. Maneck, G. Boiteux, and J. Jeszka. "Segregated network polymer/carbon nanotubes composites." Open Chemistry 2, no. 2 (June 1, 2004): 363–70. http://dx.doi.org/10.2478/bf02475579.

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AbstractIn this work we present the preparation of conductive polyethylene/carbon nanotube composites based on the segregated network concept. Attention has been focused on the effect of decreasing the amount of filler necessary to achieve low resistivity. Using high- and low-grade single-walled carbon nanotube materials we obtained conductive composites with a low percolation threshold of 0.5 wt.% for high-grade nanotubes, about 1 wt% for commercial nanotubes and 1.5 wt% for low-grade material. The higher percolation threshold for low-grade material is related to low effectiveness of other carbon fractions in the network formation. The electrical conductivity was measured as a function of the single-walled carbon nanotubes content in the polymer matrix and as a function of temperature. It was also found that processing parameters significantly influenced the electrical conductivity of the composites. Raman spectroscopy was applied to study single wall nanotubes in the conductive composites.

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36

Pfeiffer, R., H. Kuzmany, W. Plank, T. Pichler, H. Kataura, and Y. Achiba. "Spectroscopic analysis of single-wall carbon nanotubes and carbon nanotube peapods." Diamond and Related Materials 11, no. 3-6 (March 2002): 957–60. http://dx.doi.org/10.1016/s0925-9635(01)00560-x.

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CARR, SAM T. "STRONG CORRELATION EFFECTS IN SINGLE-WALL CARBON NANOTUBES." International Journal of Modern Physics B 22, no. 30 (December 10, 2008): 5235–60. http://dx.doi.org/10.1142/s0217979208049455.

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We present an overview of strong correlations in single-wall carbon nanotubes, and an introduction to the techniques used to study them theoretically. We concentrate on zigzag nanotubes, although universality dictates that much of the theory can also be applied to armchair or chiral nanotubes. We show how interaction effects lead to exotic low energy properties and discuss future directions for studies on correlation effects in nanotubes.

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38

Buehler, Markus J., Yong Kong, and Huajian Gao. "Deformation Mechanisms of Very Long Single-Wall Carbon Nanotubes Subject to Compressive Loading." Journal of Engineering Materials and Technology 126, no. 3 (June 29, 2004): 245–49. http://dx.doi.org/10.1115/1.1751181.

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We report atomistic studies of single-wall carbon nanotubes with very large aspect ratios subject to compressive loading. These long tubes display significantly different mechanical behavior than tubes with smaller aspect ratios. We distinguish three different classes of mechanical response to compressive loading. While the deformation mechanism is characterized by buckling of thin shells in nanotubes with small aspect ratios, it is replaced by a rod-like buckling mode above a critical aspect ratio, analogous to the Euler theory in continuum mechanics. For very large aspect ratios, a nanotube is found to behave like a flexible macromolecule which tends to fold due to vdW interactions between different parts of the carbon nanotube. This suggests a shell-rod-wire transition of the mechanical behavior of carbon nanotubes with increasing aspect ratios. While continuum mechanics concepts can be used to describe the first two types of deformation, statistical methods will be necessary to describe the dynamics of wire-like long tubes.

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Ghosh, Shankar, Pallavi V. Teredesai, and A. K. Sood. "Electrochemical tuning and mechanical resilience of single-wall carbon nanotubes." Pure and Applied Chemistry 74, no. 9 (January 1, 2002): 1719–30. http://dx.doi.org/10.1351/pac200274091719.

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Single-wall carbon nanotubes (SWNTs) are fascinating systems exhibiting many novel physical properties. In this paper, we give a brief review of the structural, electronic, vibrational, and mechanical properties of carbon nanotubes. In situ resonance Raman scattering of SWNTs investigated under electrochemical biasing demonstrates that the intensity of the radial breathing mode varies significantly in a nonmonotonic manner as a function of the cathodic bias voltage, but does not change appreciably under anodic bias. These results can be quantitatively understood in terms of the changes in the energy gaps between the 1D van Hove singularities in the electron density of states, arising possibly due to the alterations in the overlap integral of π bonds between the π-orbitals of the adjacent carbon atoms. In the second part of this paper, we review our high-pressure X-ray diffraction results, which show that the triangular lattice of the carbon nanotube bundles continues to persist up to ∼10 GPa. The lattice is seen to relax just before the phase transformation, which is observed at ∼10 GPa. Further, our results display the reversibility of the 2D lattice symmetry even after compression up to 13 GPa well beyond the 5 GPa value observed recently. These experimental results explicitly validate the predicted remarkable mechanical resilience of the nanotubes.

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Nonoguchi, Yoshiyuki. "Thermoelectric materials produced from single-wall carbon nanotubes." Carbon Reports 2, no. 3 (September 1, 2023): 146–54. http://dx.doi.org/10.7209/carbon.020303.

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41

Lakshmanan, Shanmugamurthy, Alokik Kanwal, Sheng Liu, Anitha Patlolla, Zafar Iqbal, Somenath Mitra, Gordon A. Thomas, Jeffrey A. Fagan, and Reginald C. Farrow. "Improved Electrophoretic Deposition of Vertical Single Wall Carbon Nanotubes with Nanoscopic Electrostatic Lenses." Micromachines 11, no. 3 (March 20, 2020): 324. http://dx.doi.org/10.3390/mi11030324.

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Under certain conditions, electrophoretic deposition (EPD) of single-wall carbon nanotubes (SWCNTs) onto metal at the base of nanoscale insulating windows can result in a single SWCNT per window, bonded at one end to the metal. During EPD charge, buildup on the insulator creates electrostatic lenses at the windows that control the trajectory of the SWCNTs. The aim is to develop a reproducible process for deposition of individual vertically oriented SWCNTs into each window to enable novel devices. The length of the SWCNTs is shown to be the most critical parameter in achieving results that could be used for devices. In particular, single nanotube deposition in windows by EPD was achieved with SWCNTs with lengths on the order of the window depth. By performing current vs voltage (IV) measurements against a platinum wire in a phosphate buffer and by modeling the data, the presence of the nanotube can be detected, the contact interface can be studied, and the nanotube’s viability for device applications can be determined. These results provide a basis for process integration of vertical SWCNTs using EPD.

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42

Lai, Xin, and Eric Roberts. "Cytotoxicity effects and ionic diffusion of single-wall carbon nanotubes in cell membrane." Journal of Micromechanics and Molecular Physics 04, no. 03 (September 2019): 1950006. http://dx.doi.org/10.1142/s2424913019500061.

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While carbon nanotubes have been put into massive practical industrial, environmental and biomedicine applications, the cytotoxicity effects or the effect to the ionic channels they bring into the living cells need to be thoroughly investigated. In this work, molecular dynamic simulations have been carried out to investigate the ionic diffusion through the single wall armchair carbon nanotube embedded right inside the cell membrane. By modeling a two-membrane system, we build a virtual cytoplasm environment including a cell chamber and an extracellular space, in which a certain amount of solute is dissolved. The system is first brought to its equilibrium by deployment of minimization and then simulated. The results suggested that carbon nanotubes (CNTs) with size less than (12, 12) shall be less cytotoxic since it does not bring any ionic diffusion through the CNT channel, so as to maintain active cytoplasm environment. Another phenomenon we observed is a notable shifting angle of the carbon nanotube which was normal to the surface of cell membrane initially. In general, the inclination angle of the carbon nanotube increases with its radius.

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Kuwahara, Shota, Yuki Kuwahara, and Hisanori Shinohara. "Quantitative Analysis of Isolated Single-Wall Carbon Nanotubes with Their Molar Absorbance Coefficients." Journal of Nanomaterials 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/262940.

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The molar absorbance coefficients of metallic, semiconducting, and (6,5) chirality enriched single-wall carbon nanotubes were evaluated by a spray technique combined with atomic force microscopy. Single-wall carbon nanotubes with isolated and a single predominant electronic type were obtained by using the density-gradient ultracentrifugation technique. In the visible region, all coefficients had similar values around 2–5 × 109/mL mol−1 cm−1, independent of their diameter distribution and the electronic types of single-wall carbon nanotubes, and theεS22/εM11 andεS11/εM11were estimated to be 1.0 and 4.0, respectively. The coefficient strongly depends on the length of single-wall carbon nanotubes, independent of their electronic types and chirality.

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Lucas Flores, Osiel, Oxana V. Kharissova, Ubaldo Ortiz Méndez, Héctor Leija Gutiérrez, Edgar de Casas Ortiz, and Boris I. Kharisov. "Application of Functionalized SWCNTs for Increase of Degradation Resistance of Acrylic Paint for Cars." Journal of Chemistry 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/573570.

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Physical properties of automotive acrylic paint are improved by incorporation of three different types of carbon nanotubes: single-wall carbon nanotubes (SWCNTs), OH-functionalized single-wall carbon nanotubes (OH-SWCNTs), and aniline-functionalized single-wall carbon nanotubes (aniline-SWCNTs). The formed composites are studied by electron miscroscopy methods and Raman spectrometry. It is found that the acrylic paints with addition of OH-SWCNTs and aniline-SWCNTs show better quality for their applications. In particular, the resistance against degradation by electron beam increased in ~500%.

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45

Toyota, Hiromichi, Ken Nagaoka, Xia Zhu, Yoshinari Kato, Shinfuku Nomura, Yukiharu Iwamoto, Hiroaki Yamamoto, and Yu Shibano. "Synthesis of Single-Wall Carbon Nanotubes by In-Liquid CVD." Key Engineering Materials 749 (August 2017): 217–22. http://dx.doi.org/10.4028/www.scientific.net/kem.749.217.

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High-speed synthesis of the carbon nanotubes in liquid is introduced. The conventional method for synthesizing carbon nanotubes is generally known as gas-phase chemical-vapor deposition (CVD). With that method, carbon nanotubes of high purity can be synthesized, but the synthesis rate is low. Even though the synthesized carbon nanotubes are excellent materials, they cannot be used in large quantities. Accordingly, in this study, single-wall carbon nanotubes (SWCNTs) are synthesized by “in-liquid” CVD. Since the molecular density of a liquid is much higher than that of a gas and the liquid has a cooling effect, performing CVD in a liquid can provide a high-speed growth rate of CNTs on substrate materials. A silicon substrate on which cobalt micro particles are deposited as the catalyst was used. Electrical-resistance heating was used for growing carbon nanotubes in pure ethanol. The synthesized nanotubes were analyzed by scanning electron microscope, transmission electron microscope, and Raman spectroscopy. The results of these analyses indicate that SWCNTs were successfully synthesized over a wide area of the substrate surface. By investigating the synthesized carbon nanotubes under varied experimental conditions (such as pressure and substrate surface roughness), it is shown that surface roughness of the substrate and the bubble behavior are related to the synthesis mechanism of the CNTs.

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46

Cortes, P., S. Deng, and G. B. Smith. "The Adsorption Properties ofBacillus atrophaeusSpores on Single-Wall Carbon Nanotubes." Journal of Sensors 2009 (2009): 1–6. http://dx.doi.org/10.1155/2009/131628.

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An adsorption equilibrium and a kinetic study ofBacillus atrophaeuson Single-Wall Carbon Nanotubes (SWCNTs) were here performed to provide the basis for developing biosensor devices for detecting threatening micro-organisms in water supply systems.B. atrophaeusspores and carbon nanotubes were subjected to a batch adsorption process to document their equilibria and kinetics. Here, commercial nanotubes were either studied as received or were acid-purified before adsorption experiments. TheBacillusspores appear to show higher affinity towards the purified nanotubes than to the as-received nanomaterial. The effective diffusivity of the spores onto the purified nanotubes was found to be approximately 30 percent higher than onto the as-received nanotubes. It seems that the removal of amorphous carbon from the as-received nanotubes through a purification process yielded an intimate nantoubes-spore interaction as revealed by transmission electron microscopy. Freundlich model successfully correlated the adsorption equilibrium data for the nanotubes-spore interaction. Transmission electron micrographs showed extensive contact between theBacillusand the purified nanotubes, but the association appeared less intimate between the spores and the as-received nanotubes.

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McCANN, EDWARD, and VLADIMIR I. FAL'KO. "SYMMETRY PROPERTIES OF IMPURITIES IN METALLIC SINGLE-WALL CARBON NANOTUBES." International Journal of Modern Physics B 18, no. 23n24 (October 10, 2004): 3195–212. http://dx.doi.org/10.1142/s021797920402641x.

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We use the effective mass model to describe spinless electrons near the Fermi level in metallic, single-wall carbon nanotubes. Taking into account two nonequivalent valleys (K-points) produces a four component Dirac equation for massless fermions, with the role of spin assumed by pseudospin due to the relative amplitude of the wavefunction on the two nonequivalent sublattice atoms. We show that the position of a short-ranged impurity within the hexagonal graphite unit cell produces a particular 4×4 matrix structure of the corresponding effective Hamiltonian. The symmetry of this Hamiltonian with respect to pseudospin flip is related to degeneracy breaking and, for an armchair tube, symmetry with respect to mirror reflection in the nanotube axis is related to pseudospin mixing. In a nanotube of finite length, we predict a sinusoidal oscillation of energy level shift as a function of energy with a period determined by the position of the impurity along the tube axis.

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48

Penumadu, D., A. Dutta, G. M. Pharr, and B. Files. "Mechanical properties of blended single-wall carbon nanotube composites." Journal of Materials Research 18, no. 8 (August 2003): 1849–53. http://dx.doi.org/10.1557/jmr.2003.0258.

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The improvement in mechanical properties of blended nanocomposites prepared using a low-viscosity, liquid epoxy resin and purified single-wall carbon nanotubes (SWCNTs) was evaluated. The macroscopic tensile stress–strain behavior for hybrid materials made with varying amounts of SWCNT was determined and showed little improvement in the breaking tensile strength. The corresponding variations in modulus and hardness were obtained using nanoindentation considering time effects and showed quantifiable but modest improvements. The small changes in the observed stiffness and breaking strength of carbon nanotube composites is due to the formation of bundles and their curvy morphology.

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Ramanathan, T., Frank T. Fisher, Rodney S. Ruoff, and L. Catherine Brinson. "Apparent Enhanced Solubility of Single-Wall Carbon Nanotubes in a Deuterated Acid Mixture." Research Letters in Nanotechnology 2008 (2008): 1–4. http://dx.doi.org/10.1155/2008/296928.

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An apparent enhanced solubility of single-wall carbon nanotubes (SWNTs) in the deuterated form of the standard 3 : 1 sulfuric (H2SO4) to nitric (HNO3) acid mixture treatment is reported and attributed to the stronger interaction of deuterium bonds with the single-wall carbon nanotube surface. UV-Visible spectroscopy was used to characterize the apparent enhanced solubility of the SWNTs treated in deuterated forms of the acid mixture in comparison to the standard acid mix, while FTIR was used to analyze the nature of the functional groups generated on the SWNTs as a result of the different acid treatments. The apparent enhanced solubility reported here is consistent with the limited number of computational and experimental results published in the literature regarding the interaction of carbon nanotubes with deuterated solvents; however, a detailed understanding of the underlying mechanism responsible for this observation is currently lacking. The apparent increased solubility observed here could potentially be utilized in many applications where carbon nanotube dispersion is required.

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Seyedi, S. Hadi, Behzad Nemati Saray, and Ali Ramazani. "High-Accuracy Multiscale Simulation of Three-Dimensional Squeezing Carbon Nanotube-Based Flow inside a Rotating Stretching Channel." Mathematical Problems in Engineering 2019 (August 26, 2019): 1–18. http://dx.doi.org/10.1155/2019/9890626.

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Enhancing the heat transfer rate using nanofluids is of great interest to engineers and scientists. This research aims to study the heat and mass transfer analysis of three-dimensional squeezing carbon nanotube- (CNT-) based nanofluid flow inside a rotating stretching channel. The upper wall of the channel is assumed to have a reciprocating movement, and the lower wall is assumed to be stationary and permeable. Also, radiative effects are taken into account using the Taylor series approximation. The momentum and energy equations are transformed into a coupled system of nonlinear ordinary differential equations utilizing similarity solutions. A new multiscale and accurate method was developed to solve the achieved nonlinear systems of equations. Water is chosen as the base fluid; single-wall carbon nanotubes (SWCNTs) and multiwall carbon nanotubes (MWCNTs) are added to it, and then two types of nanofluids were created. The effect of different variables such as the concentration of nanotubes, nanotube’s type, suction parameter, rotation parameter, squeezing number, Eckert number, and radiation parameter on the velocity and temperature profiles is investigated. Our results reveal that the temperature profile is an increasing function of the squeezing number, suction, rotation, and radiation parameters when the upper wall moves towards the lower one.

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Journal articles on the topic 'Single-wall carbon nanotubes'

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