Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/59868

A new alkali-resistant Ni/Al2O3-MSU-1 core-shell catalyst for methane steam reforming in a direct internal reforming molten carbonate fuel cell

Authors Zhang, Jian
Zhang, Xiongfu
Liu, Weifeng
Liu, Haiou
Qiu, Jieshan
Yeung, King Lun View this author's profile
Issue Date 2014
Source Journal of Power Sources , v. 246, 2014, p. 74-83
Summary An alkali-resistant catalyst for direct internal reforming molten carbonate fuel cell (DIR-MCFC) is prepared by growing a thin shell of mesoporous MSU-1 membrane on Ni/Al2O3 catalyst beads. The MSU-1 shell is obtained by first depositing a monolayer of colloidal silicalite-1 (Sil-1) on the catalyst bead as linkers and then using NaF stored in the beads to catalyze the growth of the MSU-1 layer. The resulting core-shell catalysts display excellent alkali-resistance and deliver stable methane conversion and hydrogen yield in an out-of-cell test simulating the operating conditions of an operating DIR-MCFC. Higher conversion and yield (i.e., up to over 70%) are obtained from the new core-shell catalyst with MSU-1 shell compared to the catalyst with microporous Sil-1 shell. A mathematical model of the reaction and poisoning of the core-shell catalyst is used to predict the optimum shell thickness for its reliable use in a DIR-MCFC. (C) 2013 Elsevier B.V. All rights reserved.
Subjects
ISSN 0378-7753
Language English
Format Article
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