Abstract
Five catalysts Pt/Vulcan-XC-72, Ir/carbon, and were investigated as CO selective oxidation catalysts with under conditions similar to that of an operating fuel cell (76°C, high humidity). This investigation was done to study the possibility of integrating a CO removal reactor into a fuel cell stack. The catalyst was the superior catalyst for CO selective oxidation with the highest CO conversion and selectivity among the catalysts evaluated. A nearly 100% CO conversion occurred with the catalyst at Although the catalyst had high activity and selectivity for CO oxidation under dry conditions, its activity decayed dramatically due to instability of in the presence of water vapor and hydrogen. © 2001 The Electrochemical Society. All rights reserved.
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