Electrolytic Hydrogen Evolution in DMFCs Induced by Oxygen Interruptions and Its Effect on Cell Performance
- 1 January 2005
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 8 (4) , A211-A214
- https://doi.org/10.1149/1.1869012
Abstract
Localized hydrogen evolution was found in the anode flow field of a liquid-feed direct methanol fuel cell (DMFC) under open-circuit conditions after the oxygen supply was cut off or restarted. More importantly, this phenomenon led to a temporary rise in the performance of the DMFC by as much as 7%. The relationship among oxygen supply interruption, hydrogen evolution, and performance variation has been investigated both theoretically and experimentally.Keywords
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