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)
Year published
2013
Metadata
Show full item recordAbstract
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 ...
View more >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.
View less >
View more >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.
View less >
Journal Title
Journal of Power Sources
Volume
224
Subject
Chemical sciences
Environmental management not elsewhere classified
Engineering