Nickel catalysts for hydrogen evolution from CSH sub(2)PO sub(4)
Unsupported nickel was evaluated as an electrocatalyst material in an electrochemical hydrogen pump using the superprotonic solid acid CSH sub(2)PO sub(4) as a proton exchange membrane. In humidified hydrogen at 250 degree C, Ni-based electrodes display a stable proton reduction current of 207 mA cm...
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Published in | Journal of power sources Vol. 245; pp. 171 - 174 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
01.01.2014
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Online Access | Get full text |
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Summary: | Unsupported nickel was evaluated as an electrocatalyst material in an electrochemical hydrogen pump using the superprotonic solid acid CSH sub(2)PO sub(4) as a proton exchange membrane. In humidified hydrogen at 250 degree C, Ni-based electrodes display a stable proton reduction current of 207 mA cm super(-2) at a 0.2 V cell potential. Electrodes utilizing carbon-supported Pt catalysts evolved hydrogen at 558 mA cm super(-2) under identical conditions. Hydrogen evolution and oxidation are reversible on Pt, but hydrogen oxidation activity is virtually absent on Ni. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 content type line 23 ObjectType-Feature-2 |
ISSN: | 0378-7753 |