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  • Evaluation of a cobalt-molybdenum-boron catalyst for hydrogen generation of alkaline sodium borohydride solution-aluminum powder system

    Author(s)
    Zhuang, Da-Wei
    Kang, Qiang
    Muir, Sean S
    Yao, Xiangdong
    Dai, Hong-Bin
    Ma, Guang-Lu
    Wang, Ping
    Griffith University Author(s)
    Yao, Xiangdong
    Year published
    2013
    Metadata
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    Abstract
    Catalyst study is a central issue in the development of sodium borohydride (NaBH4)-based hydrogen generation systems. Here, we report the preparation, characterization and utilization of a novel cobalt emolybdenumeboron (CoeMoeB) catalyst. Our study found that the CoeMoeB catalyst prepared by chemical reduction method using an ethylene glycol solution of cobalt chloride exhibits remarkably higher catalytic activity than the CoeB and CoeMoeB catalysts prepared in aqueous solution. On the basis of the phase, microstructure and elemental chemical state analyses, the mechanistic reasons for the improved performance of the ...
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    Catalyst study is a central issue in the development of sodium borohydride (NaBH4)-based hydrogen generation systems. Here, we report the preparation, characterization and utilization of a novel cobalt emolybdenumeboron (CoeMoeB) catalyst. Our study found that the CoeMoeB catalyst prepared by chemical reduction method using an ethylene glycol solution of cobalt chloride exhibits remarkably higher catalytic activity than the CoeB and CoeMoeB catalysts prepared in aqueous solution. On the basis of the phase, microstructure and elemental chemical state analyses, the mechanistic reasons for the improved performance of the newly prepared CoeMoeB catalyst were discussed. Our study demonstrated that the combined usage of concentrated NaBH4 solution, CoeMoeB catalyst and a small amount of Al powder constitutes a high-performance hydrogen generation system, which can yield >6 wt% hydrogen with fast kinetics and high fuel conversion.
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    Journal Title
    Journal of Power Sources
    Volume
    224
    DOI
    https://doi.org/10.1016/j.jpowsour.2012.09.106
    Subject
    Chemical sciences
    Environmental management not elsewhere classified
    Engineering
    Publication URI
    http://hdl.handle.net/10072/49577
    Collection
    • Journal articles

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