4.8 Article

De-alloyed PtCu/C catalysts with enhanced electrocatalytic performance for the oxygen reduction reaction

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Summary: Proton exchange membrane fuel cell is a feasible technology for clean energy production. Developing a cost-effective and highly efficient catalyst for oxygen reduction reaction (ORR) is a challenge. Alloying Pt with transition metals can lead to unprecedented activity. The PtCuFe nanoparticles surpass DOE technical requirements for ORR catalyst in PEMFC application. The dealloying process affects catalytic activity for ORR and dissolution of non-noble metals improves PtCuFe ORR activity. The D-Pt1CuFe/C-150 catalyst demonstrates prolonged stability in comparison to a state-of-the-art commercial TKK catalyst.

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