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
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.
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