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题名: Facile synthesis of novel octopus-like carbon nanostructures by chemical vapor deposition
作者: Asif, Muhammad1, 2;  Rashad, Muhammad3;  Vullum-Bruer, Fride4;  Li, Jiayan1;  You, Xiaogang1;  Khan, Abdul Sammed2;  Deng, Chenghao2;  Pan, Lujun2;  Tan, Yi1
关键词: Chemical vapor deposition ;  Carbon nanofibers ;  Carbon nanostructures ;  Carbon materials ;  Thin film ;  Nano devices
刊名: DIAMOND AND RELATED MATERIALS
发表日期: 2017-04-01
DOI: 10.1016/j.diamond.2017.03.004
卷: 74, 页:145-153
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
研究领域[WOS]: Materials Science
英文摘要: Growth of novel carbon nanomaterials has been of great interest for researchers due to their potential applications in nano-devices. In the current work, we reported radial growth of novel octopus-like carbon nanostructures (OCNS) by chemical vapor deposition (CVD), using methane as carbon precursor gas, and Cu film sputtered on Si/SiO2 substrate as the catalyst. Annealing at high temperature transforms Cu thin film to catalytic copper nanoparticles (CuNPs), which on exposure to methane results in the radial growth of carbon nanofibers (CNFs) departing from the central CuNPs. The size of OCNS and morphology vary as a function of Cu film thickness, precursor gas concentration, and growth time. High methane concentration boosts up growth kinetics, resulting in long carbon fibers in addition to OCNS, with fiber length varying from a few hundred nanometers to several hundred microns. Effect of substrate on the morphology of carbon nanostructures is also studied using Cu film sputtered on silicon, quartz, and Si/SiO2 substrates. The branch like morphology of OCNS exhibits large surface/contact area for their applications in electronic and electrochemical devices. (C) 2017 Elsevier B.V. All rights reserved.
关键词[WOS]: NANOTUBE-Y-JUNCTIONS ;  FLOWER-LIKE ;  MODERATE TEMPERATURES ;  CONTROLLED GROWTH ;  COPPER SILICIDES ;  ALLOY CATALYSTS ;  DIFFUSION ;  METHANE ;  DECOMPOSITION ;  NANOFIBERS
语种: 英语
WOS记录号: WOS:000401888900021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152274
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
2.Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116024, Peoples R China
4.Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, NTNU, N-7491 Trondheim, Norway

Recommended Citation:
Asif, Muhammad,Rashad, Muhammad,Vullum-Bruer, Fride,et al. Facile synthesis of novel octopus-like carbon nanostructures by chemical vapor deposition[J]. DIAMOND AND RELATED MATERIALS,2017,74:145-153.
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