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题名: Morphology observation of carbon deposition by CH4 decomposition over Ni-based catalysts
作者: Yang, YL;  Xu, HY;  Li, WZ
通讯作者: 杨咏来
刊名: NANOTECHNOLOGY
发表日期: 2005
DOI: 10.1088/0957-4484/16/1/026
卷: 16, 期:1, 页:129-132
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 801
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: We found a novel morphology variation of carbon deposition derived from CH4 decomposition over NI-based catalysts. By altering the chemical composition and particle size of Ni-based catalysts, carbon filaments, nanofibres and nanotubes were observed over conventional Ni/y-Al2O3, Ni-Co/gamma-Al2O3 and nanoscale Ni-Co/gamma-Al2O3 catalysts, respectively. The simple introduction of Co into a conventional Ni/gamma-Al2O3 catalyst can vary the carbon deposition from amorphous filamentous carbon to ordered carbon fibres. Moreover, carbon nanotubes with uniform diameter distribution can be obtained over nanosized Ni-Co/gamma-Al2O3 catalyst particles. In addition, the oxidation behaviour of the different deposited carbon was studied by using a temperature-programmed oxidation technique. This work provides a simple strategy to control over the size and morphology of the carbon deposition from catalytic decomposition of CH4.
关键词[WOS]: METHANE DECOMPOSITION ;  NANOTUBE GROWTH ;  PARTICLE-SIZE ;  SYNTHESIS GAS ;  DIOXIDE ;  DIAMETER ;  NANOPARTICLES ;  NANOFIBERS ;  OXIDATION ;  SYNGAS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000226763800027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81531
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Yang, YL,Xu, HY,Li, WZ. Morphology observation of carbon deposition by CH4 decomposition over Ni-based catalysts[J]. NANOTECHNOLOGY,2005,16(1):129-132.
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