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The durability and cost of fuel cell cathode catalysts are major technical barriers to the commercialization of fuel cells for vehicle applications. In this work, novel Pt and PtPd hybrid catalysts are developed that use a nitrogen-modified carbon composite (NMCC), which is itself active for the oxygen reduction reaction (ORR), instead of a conventional carbon black support. The fuel cell accelerated...
The electrochemical performance of an unsupported PtIr electrocatalyst was evaluated as a bifunctional oxygen electrode in a unitized regenerative fuel cell (URFC). The catalyst was a mixture of unsupported Pt black and Ir black catalysts in varying proportions. The performance of the unsupported PtIr catalyst was studied by using a rotating ring disc electrode (RRDE) and linear sweep voltammetry...
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