电沉积法制备三维泡沫镍负载钴催化剂及其工艺条件优化

doi:10.11896/j.issn.1005-023X.2018.19.003

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Abstract Porous nickel foam possesses the advantages of light weight, large specific surface area, good permeability and so forth, which is widely applied in the field of new energy materials including lithium battery, supercapacitor, fuel cell etc. The nickel foam supported cobalt (Co/Ni-foam) catalyst was synthesized by electrodeposition for alcoholysis of sodium borohydride, and hydrogen generation rate was tested by drainage method. The results of XRD show that the active component cobalt of the Co/Ni-foam ca-talyst was α phase. The SEM images showed the Co/Ni-foam catalyst had a smooth and neat surface, as well as a three-dimensional structure, which was beneficial to the gas-liquid flow during the catalytic reaction. The effects of electrodeposition time, bath tempe-rature, current density and bath concentration on the hydrogen production performance of the catalyst were also investigated, and the preparation conditions were optimized. The hydrogenation rate of the sodium borohydride was about 17 685.81 mL·min^-1·g^-1(Co), with the electrodeposition time of 1.5 h, the bath temperature of 40 ℃, the current density of 5 mA/cm², and the bath concentration of 50 g/L. This method present broad application prospects in the portable hydrogen production technology.

Key words： electrodeposition sodium borohydride hydrogen generation alcoholysis

Published: 18 October 2018

CLC number:

TK91

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	Articles by authors
	WEI Yongsheng
	WANG Maosen
	KANG Jian
	MA Ruixin
	WEI Lu
	LI Jianwei
	ZHAO Xinsheng

Cite this article:

WEI Yongsheng,WANG Maosen,KANG Jian, et al. Preparation of Three-dimensional Nickel Foam Supported Cobalt Catalyst by Electrodeposition and Its Process Optimizatio[J]. Materials Reports, 2018, 32(19): 3304-3308.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.19.003 OR http://www.mater-rep.com/EN/Y2018/V32/I19/3304

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