Development of low hydrogen overpotential electrodes utilizing metal ultra-fine particles

Cathode materials with high catalytic activity for the hydrogen evolution reaction were developed by using metal ultra-fine particles (UFPs) of Ni and Mo. Ni UFPs sintered at about 573 K were extremely porous and had an enormously large surface area. The measured hydrogen overpotential of the Ni UFP...

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Bibliographic Details
Published in:International journal of hydrogen energy 1996-10, Vol.21 (10), p.877-881
Main Authors: Ezaki, H., Nambu, T., Morinaga, M., Udaka, M., Kawasaki, K.
Format: Article
Language:English
Subjects:
Alternative fuels. Production and utilization
Applied sciences
Energy
Exact sciences and technology
Fuels
Hydrogen
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Summary:Cathode materials with high catalytic activity for the hydrogen evolution reaction were developed by using metal ultra-fine particles (UFPs) of Ni and Mo. Ni UFPs sintered at about 573 K were extremely porous and had an enormously large surface area. The measured hydrogen overpotential of the Ni UFPs in sulfuric acid solution was shown to be as low as that of Pt. Further decrease in hydrogen overpotential was observed when Mo UFPs were mixed with the Ni UFPs.
ISSN:0360-3199
1879-3487
DOI:10.1016/0360-3199(96)00025-0