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Journal articles on the topic 'Allotrope'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Pezoldt, Jörg. "Formation of Different Carbon Phases on SiC." Materials Science Forum 615-617 (March 2009): 227–30. http://dx.doi.org/10.4028/www.scientific.net/msf.615-617.227.

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Carbon is able to crystallise in different allotrope modifications. They mainly differ in the dominating bindings formed in dependence on the hybridization sp, sp2 and sp3 of the carbon atoms. The present work demonstrates the formation of two different forms of car¬bon allotropes by heating both polar surfaces of on axis 6H-SiC(0001) and 6H-SiC(000 ) crystals to temperatures above 1600°C. In consequence of the structural evolution graphite-like (sp2-hybridised) and carbine-like (sp-hybridised) allotropic carbon modifications were obtained.

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2

Impellizzeri, A., A. A. Vorfolomeeva, N. V. Surovtsev, A. V. Okotrub, C. P. Ewels, and D. V. Rybkovskiy. "Simulated Raman spectra of bulk and low-dimensional phosphorus allotropes." Physical Chemistry Chemical Physics 23, no. 31 (2021): 16611–22. http://dx.doi.org/10.1039/d1cp02636d.

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The Placzek approximation with DFT accurately reproduces experimental Raman spectra for phosphorus allotropes. We explain bulk allotrope spectral features in black and white phosphorus, and predict spectra for phosphorus nanostructures.

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3

Rickhaus, Michel, Marcel Mayor, and Michal Juríček. "Chirality in curved polyaromatic systems." Chemical Society Reviews 46, no. 6 (2017): 1643–60. http://dx.doi.org/10.1039/c6cs00623j.

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Chiral non-planar polyaromatic systems that display zero, positive or negative Gaussian curvature are analysed and their potential to ‘encode’ chirality of larger sp²-carbon allotropes is evaluated. Shown is a hypothetical peanut-shaped carbon allotrope, where helical chirality results from the interplay of various curvature types.

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4

Yap, Stephanie Hui Kit, Kok Ken Chan, Swee Chuan Tjin, and Ken-Tye Yong. "Carbon Allotrope-Based Optical Fibers for Environmental and Biological Sensing: A Review." Sensors 20, no. 7 (April 5, 2020): 2046. http://dx.doi.org/10.3390/s20072046.

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Recently, carbon allotropes have received tremendous research interest and paved a new avenue for optical fiber sensing technology. Carbon allotropes exhibit unique sensing properties such as large surface to volume ratios, biocompatibility, and they can serve as molecule enrichers. Meanwhile, optical fibers possess a high degree of surface modification versatility that enables the incorporation of carbon allotropes as the functional coating for a wide range of detection tasks. Moreover, the combination of carbon allotropes and optical fibers also yields high sensitivity and specificity to monitor target molecules in the vicinity of the nanocoating surface. In this review, the development of carbon allotropes-based optical fiber sensors is studied. The first section provides an overview of four different types of carbon allotropes, including carbon nanotubes, carbon dots, graphene, and nanodiamonds. The second section discusses the synthesis approaches used to prepare these carbon allotropes, followed by some deposition techniques to functionalize the surface of the optical fiber, and the associated sensing mechanisms. Numerous applications that have benefitted from carbon allotrope-based optical fiber sensors such as temperature, strain, volatile organic compounds and biosensing applications are reviewed and summarized. Finally, a concluding section highlighting the technological deficiencies, challenges, and suggestions to overcome them is presented.

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5

Bondarchuk, Sergey V., and Boris F. Minaev. "Super high-energy density single-bonded trigonal nitrogen allotrope—a chemical twin of the cubic gauche form of nitrogen." Physical Chemistry Chemical Physics 19, no. 9 (2017): 6698–706. http://dx.doi.org/10.1039/c6cp08723j.

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A new ambient-pressure metastable single-bonded nitrogen allotrope was predicted using reliable theoretical methods. The predicted allotrope has a number of similarities with the experimentally detected cubic gauche nitrogen allotrope.

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6

Abdulnabi, Hussein A., and Yasin Yousif Al-Aboosi. "Design of Tunable Multiband Hybrid Graphene Metal Antenna in Microwave Regime." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 3 (December 1, 2018): 1003. http://dx.doi.org/10.11591/ijeecs.v12.i3.pp1003-1009.

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<p>Graphene is an <a title="Allotrope" href="https://en.wikipedia.org/wiki/Allotrope">allotrope</a> (form) of carbon consisting of a single layer of carbon atoms arranged in an <a title="Hexagonal lattice" href="https://en.wikipedia.org/wiki/Hexagonal_lattice">hexagonal lattice</a>. It is the basic structural element of many other allotropes of carbon, such as <a title="Graphite" href="https://en.wikipedia.org/wiki/Graphite">graphite</a>, <a title="Charcoal" href="https://en.wikipedia.org/wiki/Charcoal">charcoal</a>, <a title="Carbon nanotube" href="https://en.wikipedia.org/wiki/Carbon_nanotube">carbon nanotubes</a> and <a title="Fullerene" href="https://en.wikipedia.org/wiki/Fullerene">fullerenes</a>. In this paper, a tunable hybrid metal-graphene antenna in the microwave regime is proposed. This antenna composed of the copper patch and four graphene strips. The antenna designs used for the cellular long-term evolution system and the operating frequency bands of 1.8, 2.5, 2.6, and 3.6 GHz, are evaluated to demonstrate the working principle and the performance tradeoffs. Furthermore, the proposed antenna can be tuned by varying applied DC voltage on the graphene which leads to change in the chemical potential of the graphene and hence the surface conductivity and electrical properties are changed. The simulation results reveal that the antenna operates in multi-band where scattering factor S<sub>11</sub>< -10 dB. In addition, the results show that hybrid metal-graphene frequency reconfigurable antennas can, at the same time, provide a tunable bandwidth and antenna matching.</p>

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7

Nisar, Jawad, Xue Jiang, Biswarup Pathak, Jijun Zhao, Tae Won Kang, and Rajeev Ahuja. "Semiconducting allotrope of graphene." Nanotechnology 23, no. 38 (September 4, 2012): 385704. http://dx.doi.org/10.1088/0957-4484/23/38/385704.

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8

Elguero, José, Concepción Foces-Foces, and Antonio L. Llamas-Saiz. "Another Possible Carbon Allotrope." Bulletin des Sociétés Chimiques Belges 101, no. 9 (September 1, 2010): 795–99. http://dx.doi.org/10.1002/bscb.19921010909.

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9

DI, You-Ying, Qi YANG, Chun-Sheng ZHOU, Cheng-Fang QIAO, Xiao-Wei CUI, and Sheng-Li GAO. "The Allotropes of Nonmetallic Elements (Ⅰ):An Overview of Hydrogen and Boron Allotrope." University Chemistry 32, no. 9 (2017): 21–34. http://dx.doi.org/10.3866/pku.dxhx201704022.

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10

Millecam, Todd, Austin J. Jarrett, Naomi Young, Dana E. Vanderwall, and Dennis Della Corte. "Coming of age of Allotrope: Proceedings from the Fall 2020 Allotrope Connect." Drug Discovery Today 26, no. 8 (August 2021): 1922–28. http://dx.doi.org/10.1016/j.drudis.2021.03.028.

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11

Delodovici, Francesco, Nicola Manini, Richard S. Wittman, Daniel S. Choi, Mohamed Al Fahim, and Larry A. Burchfield. "Protomene: A new carbon allotrope." Carbon 126 (January 2018): 574–79. http://dx.doi.org/10.1016/j.carbon.2017.10.069.

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12

Nulakani, Naga Venkateswara Rao, and Venkatesan Subramanian. "Superprismane: A porous carbon allotrope." Chemical Physics Letters 715 (January 2019): 29–33. http://dx.doi.org/10.1016/j.cplett.2018.11.006.

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13

JOYA, M. R., A. R. ZANATTA, and J. BARBA-ORTEGA. "RAMAN SPECTROSCOPY OF TEMPERATURE INDUCED EFFECTS IN FOUR CARBON ALLOTROPES." Modern Physics Letters B 27, no. 28 (October 24, 2013): 1350203. http://dx.doi.org/10.1142/s0217984913502035.

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In this paper, we report strong variations in the Raman spectra of different carbon allotropes samples, for temperatures ranging from 83 K to 1123 K. The temperature dependence of D and G peak frequencies in the Raman spectrum of diamond, graphite, graphene, and carbon nanoparticles (CNPs) with 20 nm dot-size were investigated. These effects caused by temperature can be estimated from the changes in position [Formula: see text] and in linewidth of peak full width at half maximum (FWHM) G in the Raman spectrum of each sample. The broadening for each allotrope under the same conditions of temperature were: diamond ~ 4 cm-1, graphite ~ 50 cm-1, graphene ~ 5 cm-1 and nanoparticles ~ 7 cm-1. We also used scanning electron microscopy (SEM) to study the morphology and determine the size of the samples. According to the experimental data, the residual structural disorder and stress present in the samples are enhanced with temperature and responds for the observed changes in the Raman spectra. We present a systematic study of the temperature-dependent Raman spectra of four carbon allotropes.

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14

Zhu, Xi, and Min Wang. "Porous CY carbon: a new semiconducting phase with an sp1–sp2–sp3 bonding network." RSC Advances 6, no. 113 (2016): 112035–39. http://dx.doi.org/10.1039/c6ra18047g.

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15

Hu, Menglei, Ziao Wang, Yanheng Xu, Jiechun Liang, Jiagen Li, and Xi Zhu. "fvs-Si48: a direct bandgap silicon allotrope." Physical Chemistry Chemical Physics 20, no. 41 (2018): 26091–97. http://dx.doi.org/10.1039/c8cp03165g.

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16

Wang, Haipeng, Cheng Liu, Huili Wang, Xinpeng Han, Shaojie Zhang, Jiantong Sun, Yiming Zhang, Yu Cao, Yuan Yao, and Jie Sun. "The synthesis of greenish phosphorus on carbon substrates." Chemical Communications 57, no. 33 (2021): 3975–78. http://dx.doi.org/10.1039/d1cc01419f.

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17

Zhang, Shunhong, Jian Zhou, Qian Wang, Xiaoshuang Chen, Yoshiyuki Kawazoe, and Puru Jena. "PENTA-GRAPHENE: A NEW CARBON ALLOTROPE." Radioelectronics. Nanosystems. Information Technologies. 7, no. 2 (December 2015): 191–207. http://dx.doi.org/10.17725/rensit.2015.07.191.

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18

Bhattarai, Laxmi Nath. "Graphene: A Peculiar Allotrope Of Carbon." Himalayan Physics 3 (January 1, 2013): 87–88. http://dx.doi.org/10.3126/hj.v3i0.7314.

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Graphene is a two dimensional one atom thick allotrope of Carbon. Electrons in grapheme behave as massless relativistic particles. It is a 2 dimensional nanomaterial with many peculiar properties. In grapheme both integral and fractional quantum Hall effects are observed. Many practical application are seen from use of Graphene material.The Himalayan PhysicsVol. 3, No. 3, July 2012Page: 87-88

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19

Jensen, William B. "The Origin of the Term Allotrope." Journal of Chemical Education 83, no. 6 (June 2006): 838. http://dx.doi.org/10.1021/ed083p838.

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20

Ding, Xian-Yong, Chao Zhang, Dong-Qi Wang, Bing-Sheng Li, Qingping Wang, Zhi Gen Yu, Kah-Wee Ang, and Yong-Wei Zhang. "A new carbon allotrope: T5-carbon." Scripta Materialia 189 (December 2020): 72–77. http://dx.doi.org/10.1016/j.scriptamat.2020.08.004.

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21

Maria-Hormigos, R., B. Jurado-Sanchez, L. Vazquez, and A. Escarpa. "Carbon Allotrope Nanomaterials Based Catalytic Micromotors." Chemistry of Materials 28, no. 24 (December 14, 2016): 8962–70. http://dx.doi.org/10.1021/acs.chemmater.6b03689.

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22

Wei, Tao, Frank Hauke, and Hirsch Andreas. "Covalent Inter-Synthetic-Carbon-Allotrope Hybrids." Accounts of Chemical Research 52, no. 8 (June 3, 2019): 2037–45. http://dx.doi.org/10.1021/acs.accounts.9b00181.

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23

HE, JuLong, Kun LUO, MengDong MA, DongLi YU, and QianQian WANG. "A new metastable metallic silicon allotrope." Chinese Science Bulletin 60, no. 27 (September 1, 2015): 2616–20. http://dx.doi.org/10.1360/n972015-00200.

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24

Fan, Qingyang, Rui Niu, Wenzhu Zhang, Wei Zhang, Yingchun Ding, and Sining Yun. "t -Si64 : A Novel Silicon Allotrope." ChemPhysChem 20, no. 1 (November 28, 2018): 128–33. http://dx.doi.org/10.1002/cphc.201800903.

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25

Zhang, Shunhong, Jian Zhou, Qian Wang, Xiaoshuang Chen, Yoshiyuki Kawazoe, and Puru Jena. "Penta-graphene: A new carbon allotrope." Proceedings of the National Academy of Sciences 112, no. 8 (February 2, 2015): 2372–77. http://dx.doi.org/10.1073/pnas.1416591112.

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A 2D metastable carbon allotrope, penta-graphene, composed entirely of carbon pentagons and resembling the Cairo pentagonal tiling, is proposed. State-of-the-art theoretical calculations confirm that the new carbon polymorph is not only dynamically and mechanically stable, but also can withstand temperatures as high as 1000 K. Due to its unique atomic configuration, penta-graphene has an unusual negative Poisson’s ratio and ultrahigh ideal strength that can even outperform graphene. Furthermore, unlike graphene that needs to be functionalized for opening a band gap, penta-graphene possesses an intrinsic quasi-direct band gap as large as 3.25 eV, close to that of ZnO and GaN. Equally important, penta-graphene can be exfoliated from T12-carbon. When rolled up, it can form pentagon-based nanotubes which are semiconducting, regardless of their chirality. When stacked in different patterns, stable 3D twin structures of T12-carbon are generated with band gaps even larger than that of T12-carbon. The versatility of penta-graphene and its derivatives are expected to have broad applications in nanoelectronics and nanomechanics.

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26

Zhao, Zhisheng, Fei Tian, Xiao Dong, Quan Li, Qianqian Wang, Hui Wang, Xin Zhong, et al. "Tetragonal Allotrope of Group 14 Elements." Journal of the American Chemical Society 134, no. 30 (July 19, 2012): 12362–65. http://dx.doi.org/10.1021/ja304380p.

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27

Minyaev, R. M., and V. E. Avakyan. "Supertetrahedrane—A new possible carbon allotrope." Doklady Chemistry 434, no. 2 (October 2010): 253–56. http://dx.doi.org/10.1134/s0012500810100010.

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28

Fan, Qitang, Linghao Yan, Matthias W. Tripp, Ondřej Krejčí, Stavrina Dimosthenous, Stefan R. Kachel, Mengyi Chen, et al. "Biphenylene network: A nonbenzenoid carbon allotrope." Science 372, no. 6544 (May 20, 2021): 852–56. http://dx.doi.org/10.1126/science.abg4509.

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The quest for planar sp2-hybridized carbon allotropes other than graphene, such as graphenylene and biphenylene networks, has stimulated substantial research efforts because of the materials’ predicted mechanical, electronic, and transport properties. However, their syntheses remain challenging given the lack of reliable protocols for generating nonhexagonal rings during the in-plane tiling of carbon atoms. We report the bottom-up growth of an ultraflat biphenylene network with periodically arranged four-, six-, and eight-membered rings of sp2-hybridized carbon atoms through an on-surface interpolymer dehydrofluorination (HF-zipping) reaction. The characterization of this biphenylene network by scanning probe methods reveals that it is metallic rather than a dielectric. We expect the interpolymer HF-zipping method to complement the toolbox for the synthesis of other nonbenzenoid carbon allotropes.

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29

Gao, Xin, Huibiao Liu, Dan Wang, and Jin Zhang. "Graphdiyne: synthesis, properties, and applications." Chemical Society Reviews 48, no. 3 (2019): 908–36. http://dx.doi.org/10.1039/c8cs00773j.

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30

Takahashi, Lauren, and Keisuke Takahashi. "Structural stability and electronic properties of an octagonal allotrope of two dimensional boron nitride." Dalton Transactions 46, no. 13 (2017): 4259–64. http://dx.doi.org/10.1039/c7dt00372b.

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31

Bandyopadhyay, Arka, Atanu Nandy, Arunava Chakrabarti, and Debnarayan Jana. "Optical properties and magnetic flux-induced electronic band tuning of a T-graphene sheet and nanoribbon." Physical Chemistry Chemical Physics 19, no. 32 (2017): 21584–94. http://dx.doi.org/10.1039/c7cp03983b.

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32

Pradhan, Nihar R., Carlos Garcia, Michael C. Lucking, Srimanta Pakhira, Juan Martinez, Daniel Rosenmann, Ralu Divan, et al. "Raman and electrical transport properties of few-layered arsenic-doped black phosphorus." Nanoscale 11, no. 39 (2019): 18449–63. http://dx.doi.org/10.1039/c9nr04598h.

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33

Du, Yonghui, Wenjing Li, Eva Zurek, Lili Gao, Xiangyue Cui, Miao Zhang, Hanyu Liu, Yuanye Tian, Songbo Zhang, and Dandan Zhang. "Predicted CsSi compound: a promising material for photovoltaic applications." Physical Chemistry Chemical Physics 22, no. 20 (2020): 11578–82. http://dx.doi.org/10.1039/d0cp01440k.

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34

Yin, Wen-Jin, Yuan-Ping Chen, Yue-E. Xie, Li-Min Liu, and S. B. Zhang. "A low-surface energy carbon allotrope: the case for bcc-C6." Physical Chemistry Chemical Physics 17, no. 21 (2015): 14083–87. http://dx.doi.org/10.1039/c5cp00803d.

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35

Wang, Haidi, Xingxing Li, Zhao Liu, and Jinlong Yang. "ψ-Phosphorene: a new allotrope of phosphorene." Physical Chemistry Chemical Physics 19, no. 3 (2017): 2402–8. http://dx.doi.org/10.1039/c6cp07944j.

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36

Rahman, Mohammad Z., and Tomas Edvinsson. "Rational design and resolution of the mystery of the structure of Cyclo[18]carbon." Journal of Materials Chemistry A 8, no. 17 (2020): 8234–37. http://dx.doi.org/10.1039/c9ta13193k.

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37

Li, Da, Fubo Tian, Binhua Chu, Defang Duan, Shuli Wei, Yunzhou Lv, Huadi Zhang, et al. "Cubic C96: a novel carbon allotrope with a porous nanocube network." Journal of Materials Chemistry A 3, no. 19 (2015): 10448–52. http://dx.doi.org/10.1039/c5ta01045d.

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38

Liu, Jing, and Haigang Lu. "Azugraphene: a new graphene-like hexagonal carbon allotrope with Dirac cones." RSC Advances 9, no. 59 (2019): 34481–85. http://dx.doi.org/10.1039/c9ra07953j.

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39

Eliášová Sohová, Marianna, Michal Bodík, Peter Siffalovic, Nikola Bugárová, Martina Labudová, Miriam Zaťovičová, Tibor Hianik, et al. "Label-free tracking of nanosized graphene oxide cellular uptake by confocal Raman microscopy." Analyst 143, no. 15 (2018): 3686–92. http://dx.doi.org/10.1039/c8an00225h.

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40

González-González, R., M. G. Salas-Zepeda, and A. Tlahuice-Flores. "New two-dimensional carbon nitride allotrope with 1 : 1 stoichiometry featuring spine-like structures: a structural and electronic DFT-D study." Physical Chemistry Chemical Physics 21, no. 28 (2019): 15282–85. http://dx.doi.org/10.1039/c9cp02846c.

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41

Raeber, Alexandra E., and David A. Mazziotti. "Non-equilibrium steady state conductivity in cyclo[18]carbon and its boron nitride analogue." Physical Chemistry Chemical Physics 22, no. 41 (2020): 23998–4003. http://dx.doi.org/10.1039/d0cp04172f.

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42

Faghihnasiri, Mahdi, S. Hannan Mousavi, Farzaneh Shayeganfar, Aidin Ahmadi, and Javad Beheshtian. "Hydrogenated Ψ-graphene as an ultraviolet optomechanical sensor." RSC Advances 10, no. 44 (2020): 26197–211. http://dx.doi.org/10.1039/d0ra03104f.

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43

Hu, Junping, Yu Liu, Ning Liu, Jianwen Li, and Chuying Ouyang. "Theoretical prediction of T-graphene as a promising alkali-ion battery anode offering ultrahigh capacity." Physical Chemistry Chemical Physics 22, no. 6 (2020): 3281–89. http://dx.doi.org/10.1039/c9cp06099e.

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44

Lo, Rabindranath, Maximilián Lamanec, Weizhou Wang, Debashree Manna, Aristides Bakandritsos, Martin Dračínský, Radek Zbořil, Dana Nachtigallová, and Pavel Hobza. "Structure-directed formation of the dative/covalent bonds in complexes with C70⋯piperidine." Physical Chemistry Chemical Physics 23, no. 7 (2021): 4365–75. http://dx.doi.org/10.1039/d0cp06280d.

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45

Gao, Jingrong, Shan He, Anindya Nag, and Jonathan Woon Chung Wong. "A Review of the Use of Carbon Nanotubes and Graphene-Based Sensors for the Detection of Aflatoxin M1 Compounds in Milk." Sensors 21, no. 11 (May 21, 2021): 3602. http://dx.doi.org/10.3390/s21113602.

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This paper presents a comprehensive review of the detection of aflatoxin compounds using carbon allotrope-based sensors. Although aflatoxin M1 and its derivative aflatoxin B1 compounds have been primarily found in milk and other food products, their presence above a threshold concentration causes disastrous health-related anomalies in human beings, such as growth impairment, underweight and even carcinogenic and immunosuppressive effects. Among the many sensors developed to detect the presence of these compounds, the employment of certain carbon allotropes, such as carbon nanotubes (CNTs) and graphene, has been highly preferred due to their enhanced electromechanical properties. These conductive nanomaterials have shown excellent quantitative performance in terms of sensitivity and selectivity for the chosen aflatoxin compounds. This paper elucidates some of the significant examples of the CNTs and graphene-based sensors measuring Aflatoxin M1 (ATM1) and Aflatoxin B1 (AFB1) compounds at low concentrations. The fabrication technique and performance of each of the sensors are shown here, as well as some of the challenges existing with the current sensors.

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46

Wang, Shuaiwei, Baocheng Yang, Houyang Chen, and Eli Ruckenstein. "Popgraphene: a new 2D planar carbon allotrope composed of 5–8–5 carbon rings for high-performance lithium-ion battery anodes from bottom-up programming." Journal of Materials Chemistry A 6, no. 16 (2018): 6815–21. http://dx.doi.org/10.1039/c8ta00438b.

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47

Bhattacharya, Debaprem, and Debnarayan Jana. "First-principles calculation of the electronic and optical properties of a new two-dimensional carbon allotrope: tetra-penta-octagonal graphene." Physical Chemistry Chemical Physics 21, no. 44 (2019): 24758–67. http://dx.doi.org/10.1039/c9cp04863d.

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48

Marinho, Enesio, and Pedro Alves da Silva Autreto. "Me-graphane: tailoring the structural and electronic properties of Me-graphene via hydrogenation." Physical Chemistry Chemical Physics 23, no. 15 (2021): 9483–91. http://dx.doi.org/10.1039/d0cp06684b.

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49

Shen, Yupeng, Fancy Qian Wang, Jie Liu, Yaguang Guo, Xiaoyin Li, Guangzhao Qin, Ming Hu, and Qian Wang. "A C20 fullerene-based sheet with ultrahigh thermal conductivity." Nanoscale 10, no. 13 (2018): 6099–104. http://dx.doi.org/10.1039/c8nr00110c.

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50

Cao, Ai-Hua, Bo Wu, and Li-Hua Gan. "Pc-carbon:A Possible Superhard Monoclinic Carbon Allotrope." Acta Chimica Sinica 77, no. 5 (2019): 455. http://dx.doi.org/10.6023/a19010017.

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