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Journal articles on the topic 'Carbon Nanotube Synthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Kim, Jeong-Hyeon, Jong-Min Kim, Sungkyun Park, Kang Hyun Park, and Jae-Myung Lee. "Synthesis and cryogenic mechanical properties of CO2-blown carbon-reinforced polyurethane foam." Journal of Cellular Plastics 54, no. 4 (2017): 743–63. http://dx.doi.org/10.1177/0021955x17750389.

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In the present study, carbon-nanotube-polyurethane foams were synthesized by adding (0.02, 0.1, and 0.3 wt%) carbon nanotubes during the polymerization reaction between polyol and isocyanate liquids. After the synthesis process, the microstructural cell morphology of the carbon-nanotube-polyurethane foams, based on the amount of carbon nanotubes, was observed using field emission scanning electron microscopy. To evaluate the mechanical characteristics of the carbon-nanotube-polyurethane foams, temperature-dependent (20°C, −90°C, and −163°C) compressive tests were performed, and the results wer

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2

See, Chee Howe, and Andrew T. Harris. "On the Development of Fluidized Bed Chemical Vapour Deposition for Large-Scale Carbon Nanotube Synthesis: Influence of Synthesis Temperature." Australian Journal of Chemistry 60, no. 7 (2007): 541. http://dx.doi.org/10.1071/ch06398.

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The absence of large-scale carbon nanotube synthesis technology (which we define as being of the order of 10 000 tonnes per plant per year) is limiting research and development activities across the sector. We contend that fluidized bed chemical vapour deposition (FBCVD) is the most promising technology for large-scale, low-cost, carbon nanotube synthesis. In this work, multi-walled carbon nanotubes were synthesized on alumina-supported iron, cobalt, or nickel catalysts by catalytic chemical vapour deposition in a 0.5 kg h–1 FBCVD reactor, using ethylene as a carbon source. The carbon nanotube

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3

Chitranshi, Megha, Anuptha Pujari, Vianessa Ng, et al. "Carbon Nanotube Sheet-Synthesis and Applications." Nanomaterials 10, no. 10 (2020): 2023. http://dx.doi.org/10.3390/nano10102023.

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Decades of extensive research have matured the development of carbon nanotubes (CNTs). Still, the properties of macroscale assemblages, such as sheets of carbon nanotubes, are not good enough to satisfy many applications. This paper gives an overview of different approaches to synthesize CNTs and then focuses on the floating catalyst method to form CNT sheets. A method is also described in this paper to modify the properties of macroscale carbon nanotube sheets produced by the floating catalyst method. The CNT sheet is modified to form a carbon nanotube hybrid (CNTH) sheet by incorporating met

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4

Liu, Yuan Chao, Ya Jie Zhang, Ya Jun Wu, and Bao Min Sun. "Carbon Nanotubes with Special Structure from the Pyrolysis Flame." Advanced Materials Research 261-263 (May 2011): 909–12. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.909.

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Carbon nanotube is the one-dimensional carbon nano-materials. The synthesis of carbon nanotubes from pyrolysis flame is a new method. Variety of carbon nanotubes with special structure can be seen from pyrolysis flame due to the influence of key factors such as the concentration of reactants and catalyst particle size. The morphology and structural of carbon nanotubes were characterized by scanning electron microscope and transmission electron microscopy respectively. Carbon nanotubes with special structure such as bamboo-like, pod-like and coil-like can be seen in the experiment. The bamboo-l

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5

Cheng, Jin, Xiao Ping Zou, Gang Qiang Yang, et al. "Iron-Filled Carbon Nanotube Arrays Obtained by Floating Catalyst Chemical Vapor Deposition." Advanced Materials Research 123-125 (August 2010): 711–14. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.711.

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In this paper, we report the synthesis of Fe-filled carbon nanotube arrays by floating catalyst chemical vapor deposition, which employed ferrocene as both catalyst precursor for carbon nanotube growth and the iron source for iron filling. We obtained Fe-filled carbon nanotube arrays perpendicular to the surface of the quartz substrates by floating catalyst chemical vapor deposition. We also conducted controlled experiments at different temperatures. Our results indicated that a higher synthesis temperature is needed for synthesizing Fe-filled carbon nanotube arrays. Magnetic property measurem

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Zhang, Dengsong, Hongxia Fu, Liyi Shi, Jianhui Fang, and Qiang Li. "Carbon nanotube assisted synthesis of CeO2 nanotubes." Journal of Solid State Chemistry 180, no. 2 (2007): 654–60. http://dx.doi.org/10.1016/j.jssc.2006.11.025.

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7

Sun, Bao Min, Yuan Chao Liu, and Zhao Yong Ding. "Carbon Nanotubes Preparation Using Carbon Monoxide from the Pyrolysis Flame." Advanced Materials Research 87-88 (December 2009): 104–9. http://dx.doi.org/10.4028/www.scientific.net/amr.87-88.104.

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Carbon nanotube is a new kind of carbon material. Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of novel technique. It needs simple laboratory equipments and normal atmosphere pressure. The V-type pyrolysis flame experimental system is introduced. Carbon source is the carbon monoxide which is carried to the middle pipe of V-type pyrolysis flame combustor. Heat source is from acetylene /air premixed flame. Pentacarbonyl iron, served as catalyst, is transported by spray- pyrolysis method into the burner. The carbon nanotubes were characterized by scanning electron microscop

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8

Leonhardt, A., Ingolf Mönch, Axel Meye, S. Hampel, and B. Büchner. "Synthesis of Ferromagnetic Filled Carbon Nanotubes and their Biomedical Application." Advances in Science and Technology 49 (October 2006): 74–78. http://dx.doi.org/10.4028/www.scientific.net/ast.49.74.

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Especially during last years, fundamental discoveries of various species and modifications of carbon nanotubes have stimulated research on their application including in human medicine. The success of these applications depends significantly on the physical, chemical and biological properties of the carbon nanotubes and their supplements. In our presentation we report on the synthesis of Fe-filled carbon nanotubes, their structural and magnetic properties and propose novel types of such functionalised and filled multiwalled carbon nanotubes with various advantages for an application in human m

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9

Chau, Pham Thi Minh, and Jung Il Jin. "SYNTHESIS AND CHARACTERISTICS OF POLY(PARA-PHENYLENEVINYLENE)." ASEAN Journal on Science and Technology for Development 24, no. 1&2 (2017): 191–97. http://dx.doi.org/10.29037/ajstd.206.

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Poly(para-phenylenevinylene) [PPV] films and nanotubes were prepared via chemical vapor deposition polymerization (CVDP) by vapor phase pyrolysis of α, α'-dichloro p-xylene on the quartz plate, silicon wafers and Al2O3 membrane substrate with the pore size f = 100 nm. We prepared graphitic carbon films and carbon nanotubes by carbonizing the poly(para-phenylenevinylene) [PPV] films and nano parterns under thermal treatment range from 500°C to 900°C. When the PPV films on quartz plate were treated at 900°C highly oriented graphitic carbon films were obtained. The characterization of the PPV nan

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10

Kharlamova, Marianna V. "Investigation of growth dynamics of carbon nanotubes." Beilstein Journal of Nanotechnology 8 (April 11, 2017): 826–56. http://dx.doi.org/10.3762/bjnano.8.85.

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The synthesis of single-walled carbon nanotubes (SWCNTs) with defined properties is required for both fundamental investigations and practical applications. The revealing and thorough understanding of the growth mechanism of SWCNTs is the key to the synthesis of nanotubes with required properties. This paper reviews the current status of the research on the investigation of growth dynamics of carbon nanotubes. The review starts with the consideration of the peculiarities of the growth mechanism of carbon nanotubes. The physical and chemical states of the catalyst during the nanotube growth are

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11

Wang, Li Qun. "Synthesis of TiO₂ - CNT Nanocomposites and its Application to Dye-Sensitized Solar Cells." Applied Mechanics and Materials 291-294 (February 2013): 722–25. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.722.

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The improved dye-sensitized solar cells were fabricated using TiO2-carbon nanotube nanocomposite photoanodes. An improvement of 91 % for power conversion efficiency is achieved through the incorporation of carbon nanotubes into TiO2mesoscopic film photoanodes. The further investigation indicates that enhancement of power conversion efficiency depends on the carbon nanotube content in nanocomposite photoanodes. With the carbon nanotube content increasing from 1 to 3 wt. %, the power conversion efficiency of solar cells significantly improves from 3.02 to 5.78 %. When the carbon nanotube content

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12

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 (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 mate

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Chipara, Mircea, Jessica Cruz, Edgar R. Vega, et al. "Polyvinylchloride-Single-Walled Carbon Nanotube Composites: Thermal and Spectroscopic Properties." Journal of Nanomaterials 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/435412.

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Nanocomposites of single-walled carbon nanotubes dispersed within polyvinylchloride have been obtained by using the solution path. High-power sonication was utilized to achieve a good dispersion of carbon nanotubes. Thermogravimetric analysis revealed that during the synthesis, processing, or thermal analysis of these nanocomposites the released chlorine is functionalizing the single-walled carbon nanotubes. The loading of polyvinylchloride by single-walled carbon nanotubes increases the glass transition temperature of the polymeric matrix, demonstrating the interactions between macromolecular

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14

Gayduchenko, Igor, Georgy Fedorov, Ramil Ibragimov, et al. "Synthesis of single-walled carbon nanotube networks using monodisperse metallic nanocatalysts encapsulated in reverse micelles." Chemical Industry 70, no. 1 (2016): 1–8. http://dx.doi.org/10.2298/hemind140910005g.

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We report on a method of synthesis of single-walled carbon nanotubes percolated networks on silicon dioxide substrates using monodisperse Co and Ni catalyst. The catalytic nanoparticles were obtained by modified method of reverse micelles of bis-(2-ethylhexyl) sulfosuccinate sodium in isooctane solution that provides the nanoparticle size control in range of 1 to 5 nm. The metallic nanoparticles of Ni and Co were characterized using transmission electron microscopy (TEM) and atomic-force microscopy (AFM). Carbon nanotubes were synthesized by chemical vapor deposition of CH4/H2 composition at t

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15

Hasani, Ali. "Approaches to Graphene, Carbon Nanotube and Carbon nanohorn, Synthesis, Properties and Applications." Nanoscience & Nanotechnology-Asia 10, no. 1 (2020): 4–11. http://dx.doi.org/10.2174/2210681208666180904102649.

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By far the most important members of carbon-based materials family, are graphene, Carbon Nanotube (CNT) and Carbon Nanohorn (CNH). Thanks to their outstanding features and effective applications, have been broadly researched in recent times. Numerous ways have been proposed to synthesize graphene, CNT and CNH. This paper presents an overview of approaches to graphene, CNT and CNH synthesis, properties and applications. Most of the ways to create graphene is related to Hummer&#039;s method. Thanks to the exclusive electrical and thermal properties of graphene, it has been applied to build b

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16

Han, Ki Bong, and Yong Ho Choi. "Characterization of Contact Resistance between Carbon Nanotubes Film and Metal Electrodes." Advanced Materials Research 683 (April 2013): 238–41. http://dx.doi.org/10.4028/www.scientific.net/amr.683.238.

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Carbon nanotube has attracted great research attentions due to its outstanding electrical, physical, mechanical, chemical properties. Based on its excellent properties, the carbon nanotube is promising nanoscale material for novel electrical, mechanical, chemical, and biological devices and sensors. However, it is very difficult to control the structure of carbon nanotube during synthesis. A carbon nanotubes film has 3 dimensional structures of interwoven carbon nanotubes as well as unique properties such as transparency, flexibility and good electrical conductivity. More importantly, the prop

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17

Kharissova, Oxana V., Beatriz Ortega Garcia, Patsy Y. Arquieta Guillén, Hugo V. Galindo Cuevas, and Romeo Selvas Aguilar. "SYNTHESIS AND CHARACTERIZATION OF 3D CARBON NANOTUBES." MRS Advances 3, no. 1-2 (2018): 103–8. http://dx.doi.org/10.1557/adv.2018.181.

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ABSTRACTA nanomaterial that attracts the attention in a variety of research areas is multiwall carbon nanotubes (MWCNTs), due to their good mechanical proprieties, and high electrical and thermal conductivity. For this reason, the preparation of three-dimensional (3D) structures from them draws interest because it opens new horizons to produce materials with novel properties and useful applications. In this investigation the synthesis of 3D nanotube carbon (nanoforest type) functionalized with nanoparticles of silver, aluminum, and iron was studied. A 3D structure was produced in the form of a

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18

Kasi, Jafar Khan, Ajab Khan Kasi, Muzamil Bokhari, and Nitin Afzulpurkar. "Synthesis of Unique Structures of Carbon Nanotube at Anodic Aluminum Oxide Template." Applied Mechanics and Materials 421 (September 2013): 319–23. http://dx.doi.org/10.4028/www.scientific.net/amm.421.319.

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Carbon nanotube (CNT) is one of the most attractive nanomaterials which may be used in many potential applications of nanotechnology due to its excellent mechanical, electrical and thermal properties. We demonstrated the fabrication of carbon nanotube at the surface of anodic aluminum oxide (AAO) membrane by chemical vapor deposition (CVD) method. Acetylene was used as a hydrocarbon source and Fe as catalyst. CNT was synthesized at different temperature. The iron catalyst was confined in the holes of the AAO membrane. A variety of carbon structures such as nanotubes, helices, spiral, and hook-

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19

KUMAR, RAJESH, RAM MANOHAR YADAV, KALPANA AWASTHI, R. S. TIWARI, and O. N. SRIVASTAVA. "EFFECT OF NITROGEN VARIATION ON THE SYNTHESIS OF VERTICALLY ALIGNED BAMBOO-SHAPED C–N NANOTUBES USING SUNFLOWER OIL." International Journal of Nanoscience 10, no. 04n05 (2011): 809–13. http://dx.doi.org/10.1142/s0219581x11008502.

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To examine the role of NH3 on bundles of aligned bamboo-shaped carbon–nitrogen (C–N) nanotube were synthesized the pyrolysis of ferrocene (Fe(C5H5)2) and sunflower oil mixtures with NH3 being the source of nitrogen. The concentration of NH3 was varying in volume (vol). Optimized temperature and concentration of ferrocene were 825°C and 10 mg/ml, respectively. With the increase of nitrogen concentration the bundles are breaking in nearly equal parts. With nitrogen doping, the nanotubes have a bamboo-like structure and reveal degraded crystallinity of graphitic sheets. Nitrogen plays key role in

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20

Dresselhaus, M. S., and H. Dai. "Carbon Nanotubes: Continued Innovations and Challenges." MRS Bulletin 29, no. 4 (2004): 237–43. http://dx.doi.org/10.1557/mrs2004.74.

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AbstractThis article outlines the content of the April 2004 issue of MRS Bulletin on Advances in Carbon Nanotubes. Essentially, carbon nanotubes are self-assembling nanostructures constructed of sheets of hexagonal-shaped carbon atoms rolled up into cylinders. Carbon nanotubes have attracted a great deal of attention as model systems for nanoscience and for potential applications. The special interest in carbon nanotubes stems from their unique structure and properties: their very small size (down to ∼0.42 nm in diameter); the possibility for carbon nanotubes to be metallic or semiconducting,

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Zhang, A. Ying. "Study on the Synthesis Process of Carbon Nanotubes." Advanced Materials Research 926-930 (May 2014): 254–57. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.254.

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Current use and application of nanotubes has mostly been limited to the use of bulk nanotubes, which is a mass of rather unorganized fragments of nanotubes. Bulk nanotube materials may never achieve a tensile strength similar to that of individual tubes, but such composites may, nevertheless, yield strengths sufficient for many applications. Bulk carbon nanotubes have already been used as composite fibers in polymers to improve the mechanical, thermal and electrical properties of the bulk product. The strength and flexibility of carbon nanotubes makes them of potential use in controlling other

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Katayama, Mitsuhiro, Shin-ichi Honda, Takashi Ikuno, et al. "Synthesis of Nanostructured Hybrid between Carbon Nanotube and Inorganic Material towards Nanodevice Application." e-Journal of Surface Science and Nanotechnology 2 (2004): 244–55. http://dx.doi.org/10.1380/ejssnt.2004.244.

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Liu, Jie, Shoushan Fan, and Hongjie Dai. "Recent Advances in Methods of Forming Carbon Nanotubes." MRS Bulletin 29, no. 4 (2004): 244–50. http://dx.doi.org/10.1557/mrs2004.75.

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AbstractSince their discovery, carbon nanotubes, both single-walled and multiwalled, have been a focus in materials research. Fundamental research and application development hinge on high-quality nanotube materials and controlled routes to their organization and assembly. The aim of this article is to provide updated information on recent progress in the synthesis of carbon nanotubes.

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Nallusamy, S. "RETRACTED: Synthesis and Characterization of Carbon Black-Halloysite Nanotube Hybrid Composites Using XRD and SEM." Journal of Nano Research 45 (January 2017): 208–17. http://dx.doi.org/10.4028/www.scientific.net/jnanor.45.208.

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Composite materials are the leading emerging materials over the past twenty years since its introduction. Among the natural composites, carbon black-halloysite nanotubes hybrid composite is one of the recent emerging sector in the composite field, because of its high strength with less density as compared to the metal matrix composite. In this research carbon black-halloysite nanotubes hybrid composites based on synthetic rubber copolymer of acrylonitrile and butadiene were prepared and tested. The carbon black loading was kept fixed at sixty per hour and halloysite nanotube loading was varied

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Lobiak, Egor V., Lyubov G. Bulusheva, Ekaterina O. Fedorovskaya, et al. "One-step chemical vapor deposition synthesis and supercapacitor performance of nitrogen-doped porous carbon–carbon nanotube hybrids." Beilstein Journal of Nanotechnology 8 (December 12, 2017): 2669–79. http://dx.doi.org/10.3762/bjnano.8.267.

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Novel nitrogen-doped carbon hybrid materials consisting of multiwalled nanotubes and porous graphitic layers have been produced by chemical vapor deposition over magnesium-oxide-supported metal catalysts. CN x nanotubes were grown on Co/Mo, Ni/Mo, or Fe/Mo alloy nanoparticles, and MgO grains served as a template for the porous carbon. The simultaneous formation of morphologically different carbon structures was due to the slow activation of catalysts for the nanotube growth in a carbon-containing gas environment. An analysis of the obtained products by means of transmission electron microscopy

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Ahn, Jung Ho, Yan Li Wang, Yong Jin Kim, Sung Jin Kim, and Hyung Sik Chung. "Synthesis of Carbon Nanotube-Reinforced Al Matrix Composites." Materials Science Forum 539-543 (March 2007): 860–65. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.860.

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We have synthesized multi-wall carbon nanotube (MWCNT)-reinforced Al matrix composites. The Al/MWCNT composite powders were prepared by ball milling using pristine Al or ball-milled Al powders as starting materials. The composite powders were consolidated by a conventional cold-compaction, followed by sintering. Uniform dispersion of individual MWCNTs within the matrix was in particular a critical factor for obtaining high density and high quality Al/MWCNT composites. Compared to pristine Al powders as starting materials, the Al powders previously attrition-ball-milled with carbon-based PCA (p

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Thurakitseree, Theerapol, and Chupong Pakpum. "Low-Cost Sputtering Process for Carbon Nanotubes Synthesis." Applied Mechanics and Materials 891 (May 2019): 195–99. http://dx.doi.org/10.4028/www.scientific.net/amm.891.195.

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According to their wonderful properties, carbon nanotubes (CNTs) have been well known for decades. The synthesis process and catalyst deposition method have also drawn attention to control the nanotube structure and properties. Sputtering method is then one promising option to grow the nanotubes in mass production. This method is, however, still costly. Here, we have presented a simple low-cost custom-made DC magnetron sputtering for catalyst thin film deposition. Three different metal thin films (Fe, Ni, Cu) deposited on Si substrates have been employed to investigate nanotube production. Pri

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Avouris, Phaedon, and Richard Martel. "Progress in Carbon Nanotube Electronics and Photonics." MRS Bulletin 35, no. 4 (2010): 306–13. http://dx.doi.org/10.1557/mrs2010.553.

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AbstractIn electronics and photonics, intrinsic properties of semiconducting materials play a dominant role in achieving high-performance devices and circuits. In this respect, carbon nanotubes are prime candidates because of their exceptionally high carrier mobility, low capacitance, and strong optical response (direct bandgap). Although these properties compare very favorably with those of crystalline silicon, several issues related to their synthesis, processing, and assembly have challenged efforts for making electronic and photonic devices. Tremendous progress, nevertheless, has been achi

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Harris, Andrew, Kiern MacKenzie, Oscar Dunens, and Chee See. "Large-Scale Carbon Nanotube Synthesis." Recent Patents on Nanotechnology 2, no. 1 (2008): 25–40. http://dx.doi.org/10.2174/187221008783478617.

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Garg, R. K., S. S. Kim, D. B. Hash, J. P. Gore, and T. S. Fisher. "Effects of Feed Gas Composition and Catalyst Thickness on Carbon Nanotube and Nanofiber Synthesis by Plasma Enhanced Chemical Vapor Deposition." Journal of Nanoscience and Nanotechnology 8, no. 6 (2008): 3068–76. http://dx.doi.org/10.1166/jnn.2008.082.

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Many engineering applications require carbon nanotubes with specific characteristics such as wall structure, chirality and alignment. However, precise control of nanotube properties grown to application specifications remains a significant challenge. Plasma-enhanced chemical vapor deposition (PECVD) offers a variety of advantages in the synthesis of carbon nanotubes in that several important synthesis parameters can be controlled independently. This paper reports an experimental study of the effects of reacting gas composition (percentage methane in hydrogen) and catalyst film thickness on car

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Le, Thang Van. "Production single-walled carbon nanotubes by chemical vapor deposition from mechanism to patterned growth for electro devices." Science and Technology Development Journal 16, no. 1 (2013): 64–71. http://dx.doi.org/10.32508/stdj.v16i1.1420.

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The ability to controllably obtain ordered carbon nanotube architectures is important to fundamental characterizations and potential applications of electrical devices. Controlled synthesis involving chemical vapor deposition (CVD) has been an effective strategy to order singlewalled nanotubes (SWNTs) on patterned catalyst. In this paper, Single-walled carbon nanotubes are synthesized by chemical vapor deposition of methane at controlled locations on a silicon substrate. This synthetic approach has allowed individual SWNT wires to be grown from controlled surface sites by catalyst patterning a

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Liu, Yuan Chao, Jun Tie Che, and Jing Hao Ren. "Influence of Carbon Source for Carbon Nanotubes Synthesis from Controllable Flame." Advanced Materials Research 1048 (October 2014): 410–13. http://dx.doi.org/10.4028/www.scientific.net/amr.1048.410.

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The flame method is a kind of new method for preparation of carbon nanotubes. The hydrocarbon gas (acetylene, ethylene, methane) or carbon monoxide is often selected as carbon source gas in this method. Carbon monoxide is a kind of effective carbon source gas in preparation of carbon nanotubes from the high temperature flame compared with hydrocarbon gases. The pentacarbonyl iron is served as catalyst precursor in the experiment. Austenitic stainless steel type316 is selected as sampling substrate in the flame experiment. The carbon nanotubes from the controllable flame have graphite well-crys

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Liu, Yuan Chao, Bao Min Sun, and Zhao Yong Ding. "Catalyst Assisted Synthesis of Carbon Nanotubes Using the V-Shaped Pyrolysis Flame Method." Advanced Materials Research 79-82 (August 2009): 2123–26. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.2123.

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Flames offer potential for synthesis of carbon nanotubes(CNTs) in large quantities at considerably lower costs than that of other methods currently available. Synthesis CNTs from V-shaped pyrolysis flame is a kind of novel technique. This study aims to examine conditions for CNTs formation in V-shaped pyrolysis flame. Synthesis inner the V-shaped body and providing heat outer is distinct characteristic in the method. A premixed carbon monoxide/hydrogen gas diluted by helium gas flow was introduced into V-shaped body bottom centre. Simultaneously, as catalyst precursor, pentacarbonyl iron was e

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Ghorbani, Mohsen, and Hossein Eisazadeh. "Polypyrrole/Carbon Nanotube and Polyaniline/Carbon Nanotube Nanocomposites: Synthesis and Characterization." Polymer-Plastics Technology and Engineering 51, no. 13 (2012): 1367–71. http://dx.doi.org/10.1080/03602559.2012.702362.

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Liu, Yuan Chao, Na Na Zheng, Jing Dong Huang, and Bao Min Sun. "Synthesis of Carbon Nanotubes with Typical Structure from the Pyrolysis Flame." Advanced Materials Research 221 (March 2011): 99–103. http://dx.doi.org/10.4028/www.scientific.net/amr.221.99.

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Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of new method. It has potential for carbon nanotubes preparation in mass production. Carbon monoxide was as carbon source and the acetylene/air premixed gas provides heat by combustion. Hydrogen/helium premixed gas acted as diluted and protection gas. Pentacarbonyl iron was served as catalyst. Carbon nanotubes with less impurity and high yield were captured successfully in the V-type pyrolysis flame. The diameter of carbon nanotubes was approximate between 10nm and 20nm, and its length was dozens of microns. The size of cataly

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Inoue, Masashi, Kouta Asai, Yoshiyuki Nagayasu, Koji Takane, and Eriko Yagasaki. "Synthesis of Carbon Nanotubes by the Catalytic Decomposition of Methane." Advances in Science and Technology 48 (October 2006): 67–72. http://dx.doi.org/10.4028/www.scientific.net/ast.48.67.

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The influence of morphology of the support particles upon the nickel-catalyzed decomposition of methane into carbon nanotubes and hydrogen was explored using a thermogravimetric apparatus. High carbon nanotube yield was attained by the Ni catalysts supported on the glycothermally synthesized ZrO2 and Er3Ga5O12 particles, which had spherical shapes. Quite high carbon yield was also obtained by the Ni catalyst supported on spherical Al2O3 particles (Nanophase Tech. Corp.). It was concluded that the most important factor governing the carbon yield is the morphology of the catalyst support, which

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Wiak, Sławomir, Anna Firych-Nowacka, Krzysztof Smółka, Łukasz Pietrzak, Zbigniew Kołaciński, and Łukasz Szymański. "Induction heating process of ferromagnetic filled carbon nanotubes based on 3-D model." Open Physics 15, no. 1 (2017): 1061–66. http://dx.doi.org/10.1515/phys-2017-0134.

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AbstractSince their discovery by Iijima in 1991 [1], carbon nanotubes have sparked unwavering interest among researchers all over the world. This is due to the unique properties of carbon nanotubes (CNTs). Carbon nanotubes have excellent mechanical and electrical properties with high chemical and thermal stability. In addition, carbon nanotubes have a very large surface area and are hollow inside. This gives a very broad spectrum of nanotube applications, such as in combination with polymers as polymer composites in the automotive, aerospace or textile industries. At present, many methods of n

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Broza, Georg. "Synthesis, properties, functionalisation and applications of carbon nanotube: a state of the art review." Chemistry & Chemical Technology 4, no. 1 (2010): 35–45. http://dx.doi.org/10.23939/chcht04.01.035.

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W. Xiong, W. Xiong, Y. Gao Y. Gao, M. Mahjouri-Samani M. Mahjouri-Samani, et al. "Laser Assisted Fabrication for Controlled Single-Walled Carbon Nanotube Synthesis and Processing(Invited Paper)." Chinese Journal of Lasers 36, no. 12 (2009): 3125–32. http://dx.doi.org/10.3788/cjl20093612.3125.

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Li, Z. G., L. Liang, P. J. Fagan, and M. van Kavelaar. "The Three-Dimensional shape of carbon nanotubes by High Resolution Electron Microscopy." Proceedings, annual meeting, Electron Microscopy Society of America 51 (August 1, 1993): 754–55. http://dx.doi.org/10.1017/s042482010014960x.

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Following the discovery of a large scale synthesis of fullerenes, the existence of the related carbon nanotubes was suggested by high resolution electron microscopy (HREM). Larger scale syntheses of these nanotube-rich materials has now been reported and has sparked interest worldwide. Because the HREM technique essentially observes the projection of a three dimensional object onto a two-dimensional plane, the three dimensional shape of the object is usually not apparent in typical HREM images. However, as we report here, by rotating along the axis of single carbon nanotube, and recording the

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Sun, Xiao Gang, Zhi Wen Qiu, Long Chen, et al. "Industrial Synthesis of Whisker Carbon Nanotubes." Materials Science Forum 852 (April 2016): 514–19. http://dx.doi.org/10.4028/www.scientific.net/msf.852.514.

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Since the first observation of carbon nanotubes (CNTs) in 1991, their synthesis techniques has been extensively investigated. The chemical vapor deposition (CVD) process have attracted much attention because of both their versatility and easy large scale production for CNTs . This paper is focused on a catalytic CVD-based method for synthesis of whisker multiwalled carbon nanotubes (WMWCNTs). The new type of carbon nanotube is similar to the whisker. The morphology of the WMWCNTs are very different from traditional carbon nanotubes prepared by traditional chemical vapor deposition process. The

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Dikio, Ezekiel D., Albert J. Kupeta, and Force T. Thema. "A Comparative Study of the Effect of MgO and CaCO3as Support Materials in the Synthesis of Carbon Nanotubes with Fe/Co as Catalyst." Journal of Chemistry 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/641823.

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A comparative study of the effect of magnesium oxide and calcium carbonate as support material in the synthesis of carbon nanotubes using the catalyst Fe/Co is presented. The synthesized carbon nanotubes were characterized with Raman spectroscopy, scanning electron spectroscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction spectroscopy (XRD), and energy dispersive spectroscopy (EDS). The morphology of the carbon nanotubes synthesized with magnesium oxide as support material gives rise to carbon nanotubes with consistent and well-defined structure unlike tha

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Tony, V. C. S., Chun Hong Voon, Chang Chuan Lee, et al. "Microwave Irradiation Assisted Synthesis of Silicon Carbide Nanotubes." Materials Science Forum 857 (May 2016): 111–15. http://dx.doi.org/10.4028/www.scientific.net/msf.857.111.

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Conventional methods for the synthesis of silicon carbide were well studied and these methods included carbothermal reduction, mechanical milling, sol-gel process and others. However, conventional methods have limitations such as high energy consumption, presence of impurities and long reaction times. In this paper, microwave heating was applied for the first time for the synthesis of silicon carbide nanotube owing to the advantages of microwave heating such as shorter reaction time, uniform heat distribution and low cost. Mixture of silicon dioxide and carbon nanotube in the ratio of 1:3 as s

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Liu, Yuan Chao, Li Zhi Wu, and Jing Hao Ren. "Experimental Analysis of the Long Carbon Nanotubes Formation from Controllable Flame." Advanced Materials Research 1048 (October 2014): 383–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1048.383.

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Flame method is a new and simple method which may has the possibility of large-scale mass production for the synthesis of carbon nanotubes. It needs not the vacuum environment and carbon nanotubes can be captured at the normal atmospheric pressure. Synthesis of carbon nanotubes from the controllable flame is a new method. It can effectively avoid the defect of the traditional flame method. Experimental apparatus is mainly including controllable flame burner with its ancillary equipment, measuring instrument and catalyst preparation system, etc. The process of formation and growth for carbon na

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MUKHOPADHYAY, KINGSUK, and GYANESH NARAYAN MATHUR. "SYNTHESIS OF 2D QUASI-ALIGNED MULTIWALLED CARBON NANOTUBES BY CATALYTIC CHEMICAL VAPOR DEPOSITION METHOD." International Journal of Nanoscience 02, no. 03 (2003): 153–64. http://dx.doi.org/10.1142/s0219581x03001152.

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Alignment or patterning of carbon nanotubes (CNTs) is particularly important for fabricating functional devices such as field emitters, nanophotonics, nanoelectronics, and ultrahydrophobic materials. This work reports on the synthesis of 2D quasi-aligned carbon nanotube bundles by catalytic chemical vapor deposition (CCVD) method using a series of catalysts and a study of their performance in a nutshell.

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Cao, Anyuan, Xianfeng Zhang, Cailu Xu, Ji Liang, Dehai Wu, and Bingqing Wei. "Aligned carbon nanotube growth under oxidative ambient." Journal of Materials Research 16, no. 11 (2001): 3107–10. http://dx.doi.org/10.1557/jmr.2001.0428.

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Carbon nanotubes (CNTs) are always produced under a reductive ambient with hydrogen present using the chemical vapor deposition method. Oxidative media, such as carbon dioxide and oxygen, could damage the tubular structures by opening the nanotube ends or etching the tube walls. Here we report the synthesis of aligned defective, but clean, CNTs in the presence of water vapor. The tube walls were found broken as well as the tube ends. CNTs with a large amount of exposed broken sites on their tube walls have potential applications in many areas such as energy storage.

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Gu, P., J. H. Zhao, and G. H. Li. "Synthesis of Y-branching multiwalled carbon nanotubes with a bamboolike structure." Journal of Materials Research 17, no. 11 (2002): 2768–70. http://dx.doi.org/10.1557/jmr.2002.0400.

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Y-branching multiwalled carbon nanotubes with a bamboolike structure were grown by chemical vapor deposition from a C–H–N gas system when B2O3 and Ti was supplied. Transmission electron microscopy images reveal that these novel junctions contain a tube branched into two tubes with nearly the same diameter. In addition, the tube walls show perpendicularly stacked graphite planes, which take on a bamboolike structure. The influence of preparation conditions on the structure of these carbon nanotubes is discussed. This novel structure may offer promising application for nanotube-based composites.

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Veeman, Dhinakaran, M. Varsha Shree, P. Sureshkumar, et al. "Sustainable Development of Carbon Nanocomposites: Synthesis and Classification for Environmental Remediation." Journal of Nanomaterials 2021 (September 18, 2021): 1–21. http://dx.doi.org/10.1155/2021/5840645.

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Composite materials with carbon nanotube and graphene attachments have been regarded as promising prospects. Carbon nanocomposites have gained considerable interest in different fields including biomedical applications due to its exceptional structural dimensions and outstanding mechanical, electrical, thermal, optical, and chemical characteristics. The significant advances made in carbon nanocomposite over past years along with the discovery of new nanocomposite processing technologies to improvise the functional impact of nanotube and graphene composites by providing proper methods of synthe

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Lin, Chuen-Chang, and Yi-Wei Lin. "Synthesis of Carbon Nanotube/Graphene Composites by One-Step Chemical Vapor Deposition for Electrodes of Electrochemical Capacitors." Journal of Nanomaterials 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/741928.

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To control the packing density of carbon nanotubes (CNTs) and the number of graphene layers, carbon nanotube/graphene composites are directly grown on cobalt (Co) catalysts-coated nickel foam by one-step ambient pressure chemical vapor deposition (CVD) at different temperatures and times. The carbon nanotube/graphene composites grown by one-step CVD at 850°C for 10 min possess the highest specific capacitance. Furthermore, a lower growing temperature leads to a higher packing density of CNTs and a smaller number of layers of graphene. A shorter growing time also leads to a smaller number of la

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Tasić, Ana, Jelena D. Rusmirović, Jovana Nikolić, et al. "Effect of the vinyl modification of multi-walled carbon nanotubes on the performances of waste poly(ethylene terephthalate)-based nanocomposites." Journal of Composite Materials 51, no. 4 (2016): 491–505. http://dx.doi.org/10.1177/0021998316648757.

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Production of high-performance nanocomposite materials obtained from unsaturated polyester resin, based on products of the waste poly(ethylene terephthalate) recycling, and modified multi-walled carbon nanotubes is presented. Di-hydroxy functional glycolysates, synthesized by catalytic depolymerization of poly(ethylene terephthalate) with propylene glycol, were used for the unsaturated polyester resin synthesis. The structure of the obtained glycolysis product and unsaturated polyester resin were characterized by using FTIR and NMR spectroscopy, and by acid, iodine, and hydroxyl value. Nanofil

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