期刊
MATERIALS LETTERS
卷 59, 期 14-15, 页码 1748-1751出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2005.01.058
关键词
cobalt boride; catalysts; sodium borohydride; catalytic hydrolysis; hydrogen generation; PEMFC
Cobalt boride precursors were synthesized via chemical reaction of aqueous sodium borohydride with cobalt chloride, and followed by heat-treating at various temperatures. The as-prepared Co-B catalysts were characterized and analyzed by X-ray diffraction (XRD), nitrogen adsorption-desorption and catalytic activity test; and were adopted to help accelerating hydrolysis reaction of NaBH4 alkaline solution. The Co-B catalyst treated at 500 degrees C exhibits the best catalytic activity, and achieves an average H, generation rate of 2970 ml/min/g, which may give a successive H, supply for a 481 W proton exchange membrane fuel cell (PEMFC) at 100% H-2 utilization. (c) 2005 Elsevier B.V. All rights reserved.
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