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

Zhuang, Da-Wei, Kang, Qiang, Muir, Sean S., Yao, Xiangdong, Dai, Hong-Bin, Ma, Guang-Lu and Wang, Ping (2013) Evaluation of a cobalt-molybdenum-boron catalyst for hydrogen generation of alkaline sodium borohydride solution-aluminum powder system. Journal of Power Sources, 224 304-311. doi:10.1016/j.jpowsour.2012.09.106


Author Zhuang, Da-Wei
Kang, Qiang
Muir, Sean S.
Yao, Xiangdong
Dai, Hong-Bin
Ma, Guang-Lu
Wang, Ping
Title Evaluation of a cobalt-molybdenum-boron catalyst for hydrogen generation of alkaline sodium borohydride solution-aluminum powder system
Journal name Journal of Power Sources   Check publisher's open access policy
ISSN 0378-7753
1873-2755
Publication date 2013-02-01
Year available 2012
Sub-type Article (original research)
DOI 10.1016/j.jpowsour.2012.09.106
Open Access Status Not yet assessed
Volume 224
Start page 304
End page 311
Total pages 8
Place of publication Lausanne, Switzerland
Publisher Elsevier
Language eng
Subject 2105 Renewable Energy, Sustainability and the Environment
2102 Energy Engineering and Power Technology
1606 Physical and Theoretical Chemistry
2208 Electrical and Electronic Engineering
Abstract Catalyst study is a central issue in the development of sodium borohydride (NaBH)-based hydrogen generation systems. Here, we report the preparation, characterization and utilization of a novel cobalt-molybdenum-boron (Co-Mo-B) catalyst. Our study found that the Co-Mo-B catalyst prepared by chemical reduction method using an ethylene glycol solution of cobalt chloride exhibits remarkably higher catalytic activity than the Co-B and Co-Mo-B 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 Co-Mo-B catalyst were discussed. Our study demonstrated that the combined usage of concentrated NaBH solution, Co-Mo-B 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.
Formatted 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-molybdenum-boron (Co-Mo-B) catalyst. Our study found that the Co-Mo-B catalyst prepared by chemical reduction method using an ethylene glycol solution of cobalt chloride exhibits remarkably higher catalytic activity than the Co-B and Co-Mo-B 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 Co-Mo-B catalyst were discussed. Our study demonstrated that the combined usage of concentrated NaBH4 solution, Co-Mo-B 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.
Keyword Hydrogen generation
Sodium borohydride
Cobalt-molybdenum-boron catalyst
Aluminum powder
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 11 October 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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