Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis

Title
Electrochemically fabricated NiCu alloy catalysts for hydrogen production in alkaline water electrolysis
Authors
안상현박희영최인수유성종황승준김형준조은애윤창원박한수손형빈후안마틴헤르난데스남석우임태훈김수길장종현
Keywords
Alkaline water electrolysis; Hydrogen evolution reaction; Electrodeposition; Nickel copper alloy catalysts
Issue Date
2013-10
Publisher
International journal of hydrogen energy
Citation
VOL 38, NO 31, 13493-13501
Abstract
NiCu alloy catalysts for alkaline water electrolysis were prepared by an electrodeposition method varying the alloy composition. When the deposition potential became more positive, the bulk and surface Cu content in NiCu alloys as well as the catalyst particle size gradually increased, which were confirmed by various spectroscopic and electrochemical techniques. The surface coverage of the catalysts was found to be a function of the deposition potential, as well. The catalytic activities of the prepared NiCu alloys to hydrogen evolution reaction (HER) were investigated with cyclic voltammetry in a 6.0 M KOH electrolyte at 298 K, and the mass activities of NiCu alloys were correlated with bulk and surface Cu contents to investigate the Cu alloying effect.
URI
http://pubs.kist.re.kr/handle/201004/45927
ISSN
03603199
Appears in Collections:
KIST Publication > Article
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