COx-Free Hydrogen and Carbon Nanofibers Produced from Direct Decomposition of Methane on Nickel-Based Catalysts

Abstract

Direct decomposition of methane was carried out using a fixed-bed reactor at 700 °C for the production of CO x -free hydrogen and carbon nanofibers. The catalytic performance of NiO-M/SiO 2 catalysts (where M=AgO, CoO, CuO, FeO, MnO x and MoO) in methane decomposition was investigated. The experimental results indicate that among the tested catalysts, NiO/SiO 2 promoted with CuO give the highest hydrogen yield. In addition, the examination of the most suitable catalyst support, including Al 2 O 3 , CeO 2 , La 2 O 3 , SiO 2 , and TiO 2 , shows that the decomposition of methane over NiO-CuO favors SiO 2 support. Furthermore, the optimum ratio of NiO to CuO on SiO 2 support for methane decomposition was determined. The experimental results show that the optimum weight ratio of NiO to CuO fell at 8:2 (w/w) since the highest yield of hydrogen was obtained over this catalyst. © 2006 CAS/DICP.

Citation

Chai, S. P., Zein, S. H. S., & Mohamed, A. R. (2006). COx-Free Hydrogen and Carbon Nanofibers Produced from Direct Decomposition of Methane on Nickel-Based Catalysts. Journal of natural gas chemistry / Chengdu Institute of Organic Chemistry, the Chinese Academy of Sciences, 15(4), 253-258. https://doi.org/10.1016/S1003-9953%2807%2960002-4

• Journal Article Type: Article
• Online Publication Date: Jan 13, 2007
• Publication Date: 2006-12
• Deposit Date: Jul 7, 2020
• Journal: Journal of Natural Gas Chemistry
• Print ISSN: 1003-9953
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 15
• Issue: 4
• Pages: 253-258
• DOI: https://doi.org/10.1016/S1003-9953%2807%2960002-4
• Keywords: Methane decomposition; Hydrogen; Carbon nanofibers; Supported catalyst
• Public URL: https://hull-repository.worktribe.com/output/550010
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S1003995307600024?via%3Dihub