Abstract
Direct dimethyl ether fuel cells (DDMEFCs) were investigated using proton-conducting as an electrolyte at intermediate temperatures between 150 and . Fuel cell operation at intermediate temperatures allowed a anode to achieve excellent CO tolerance and high catalytic activity for the anode reaction of DME. The catalytic activity of the anode was further improved by the addition of Ru to Pt, especially at elevated temperatures. The anodic overpotential and anode product measurements revealed that the produced by the reforming reaction of DME was electrochemically oxidized at the anode, which proceeded in parallel with the direct oxidation reaction of DME. As a result, DDMEFCs with the anode achieved a peak power density of 31, 52, and at 200, 250, and , respectively.
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