期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 35, 期 6, 页码 2296-2304出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2009.12.109
关键词
Hydrogen; Dry reforming; Rh-Ni-MCM-41; Ni-MCM-41; Catalyst stability
资金
- TUBITAK [107M066, 105M373]
- Gazi University [06/2006-11, 06/2008-10]
- METU
- Bulgarian Academy of Sciences
Ni incorporated and Ni-Rh incorporated bimetallic MCM-41 like mesoporous catalysts, which were synthesized following a one-pot hydrothermal procedure, showed very high activity in dry reforming of methane. Among the Ni incorporated catalysts, Ni-MCM-41-V, with a Ni/Si ratio of 0.19, showed the best catalytic performance. Rh incorporation into this catalyst by the one-pot procedure improved both activity and time on stream stability of the catalyst. However, Rh incorporation by impregnation caused instabilities due to coke formation, after about 11 h of reaction time. Occurrence of reverse water gas shift reaction caused higher CO selectivity than H-2 selectivity, with the Ni incorporated catalysts. Rh incorporation into these catalysts decreased the relative significance of reverse water gas shift reaction, with respect to dry reforming reaction. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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