Electrochemical and Structural Studies of Petroleum Coke in Carbonate‐Based Electrolytes

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Abstract
A new method is described to improve the performance of a proton exchange membrane fuel cell (PEMFC) using reformed methanol or as fuels. The addition of liquid hydrogen peroxide to the humidification water for the fuel gas leads to a heterogeneous decomposition of and formation of active oxygen. In this way adsorbed CO is oxidized nonelectrochemically to and the blocking of the hydrogen oxidation reaction at the anode can be avoided. It is demonstrated that a complete recovery of the CO‐free performance is achieved for ppm CO.

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