能源化学(英文)
ISSN 1003-9953
     
天然气化学 2011, Vol. 20 Issue (1) :84-89    DOI: 10.1016/S1003-9953(10)60151-X
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A parametric study of methane decomposition into carbon nanotubes over 8Co-2Mo/Al2O3 catalyst
Siang-Piao Chai1, Choon-Ming Seah2, Abdul Rahman Mohamed2*
1. School of Engineering, Monash University, Jalan Lagoon Selatan, 46150 Bandar Sunway, Selangor, Malaysia; 2. School of Chemical Engineering, Engineering Campus, University Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal, S.P.S. Pulau Pinang, Malaysia
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摘要 The effects of reaction temperature, partial pressure of methane, catalyst weight and gas hourly space velocity (GHSV) on methane decomposition were reported. The decomposition reaction was performed in a vertical fixed-bed reactor over 8Co-2Mo/Al2O3 catalyst. The experimental results show that these four process parameters studied had vital effects on carbon yield. As revealed by the electron microscopy and Raman spectroscopy analyses, the reaction temperature and GHSV governed the average diameter, the diameter distribution and the degree of graphitization of the synthesized carbon nanotubes (CNTs). Also, an evidence is presented to show that higher temperatures and higher GHSV favored the formation of better-graphitized CNTs with larger diameters.
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Siang-Piao Chai
Choon-Ming Seah
Abdul Rahman Mohamed
关键词methane   chemical vapor deposition   Co-Mo/Al2O3   carbon nanotubes   parametric study     
收稿日期: 2010-08-09; 发布日期: 2011-01-30
通讯作者 Abdul Rahman Mohamed     Email: chrahman@eng.usm.my
引用本文:   
Siang-Piao Chai, Choon-Ming Seah, Abdul Rahman Mohamed .A parametric study of methane decomposition into carbon nanotubes over 8Co-2Mo/Al2O3 catalyst[J]  天然气化学 , 2011,V20(1): 84-89
Siang-Piao Chai, Choon-Ming Seah, Abdul Rahman Mohamed .A parametric study of methane decomposition into carbon nanotubes over 8Co-2Mo/Al2O3 catalyst[J]  Journal of Energy Chemistry, 2011,V20(1): 84-89
链接本文:  
http://www.jenergchem.org/CN/10.1016/S1003-9953(10)60151-X      或     http://www.jenergchem.org/CN/Y2011/V20/I1/84
 
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