A study on hydrogen generation from NaBH4 solution using the high-performance Co-B catalyst

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For hydrogen generation from an aqueous alkaline NaBH4 solution, Co-B catalyst was prepared by the chemical reduction method using NaBH4 as a reduction chemical. To design a hydrogen generator, hydrogen generation rate was measured using the Co-13 catalyst as a function of solution temperature, amount of catalyst loading, NaBH4 concentration, and NaOH (a base-stabilizer) concentration. Activation energy for the hydrogen generation reaction was measured to be 64.87 kJ mol(-1). Compared to Ru catalysts previously used, the low-cost Co-13 catalyst exhibited comparable activity for the hydrogen generation reaction. Using the hydrogen generation system employing the Co-13 catalyst, a 2 W polymer electrolyte membrane fuel cell (PEMFC) stack was operated and successfully powered a cellular phone.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2005-06
Language
English
Article Type
Article
Keywords

BOROHYDRIDE SOLUTION; RU CATALYST

Citation

JOURNAL OF POWER SOURCES, v.144, no.1, pp.129 - 134

ISSN
0378-7753
DOI
10.1016/j.jpowsour.2004.12.046
URI
http://hdl.handle.net/10203/192914
Appears in Collection
MS-Journal Papers(저널논문)
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