Self-Assembly of Graphene on Carbon Nanotube Surfaces | |
Li, KY ; Eres, G ; Howe, J ; Chuang, YJ ; Li, XF ; Gu, ZJ ; Zhang, LT ; Xie, SS ; Pan, ZW | |
刊名 | SCIENTIFIC REPORTS |
2013 | |
卷号 | 3 |
ISSN号 | 2045-2322 |
通讯作者 | Eres, G (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. |
中文摘要 | The rolling up of a graphene sheet into a tube is a standard visualization tool for illustrating carbon nanotube (CNT) formation. However, the actual processes of rolling up graphene sheets into CNTs in laboratory syntheses have never been demonstrated. Here we report conformal growth of graphene by carbon self-assembly on single-wall and multi-wall CNTs using chemical vapor deposition (CVD) of methane without the presence of metal catalysts. The new graphene layers roll up into seamless coaxial cylinders encapsulating the existing CNTs, but their adhesion to the primary CNTs is weak due to the existence of lattice misorientation. Our study shows that graphene nucleation and growth by self-assembly of carbon on the inactive carbon basal plane of CNTs occurs by a new mechanism that is markedly different from epitaxial growth on metal surfaces, opening up the possibility of graphene growth on many other non-metal substrates by simple methane CVD. |
资助信息 | U.S. NSF [CAREER DMR-0955908]; China Scholarship Council; Materials Sciences and Engineering Division, Office of Basic Energy Science, U.S. Department of Energy; National Basic Research Programs of China (973 program) [2012CB932504]; Oak Ridge National Laboratory's Shared Research Equipment (ShaRE) User Program; Scientific User Facilities Division of the Office of Basic Energy Science |
语种 | 英语 |
公开日期 | 2014-01-17 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/57432] |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Li, KY,Eres, G,Howe, J,et al. Self-Assembly of Graphene on Carbon Nanotube Surfaces[J]. SCIENTIFIC REPORTS,2013,3. |
APA | Li, KY.,Eres, G.,Howe, J.,Chuang, YJ.,Li, XF.,...&Pan, ZW.(2013).Self-Assembly of Graphene on Carbon Nanotube Surfaces.SCIENTIFIC REPORTS,3. |
MLA | Li, KY,et al."Self-Assembly of Graphene on Carbon Nanotube Surfaces".SCIENTIFIC REPORTS 3(2013). |
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