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- W2029516025 abstract "Carbon dispersed Pd5Cu4Pt nanocatalyst synthesized by chemical reduction with NaBH4 for the oxygen reduction reaction (ORR) in acid media is investigated. Nanocatalyst is physically characterized by transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (DRX). Results demonstrate the formation of conglomerate nanometric particles ranging from 2 to 10 nm in size. Electrochemical activity is demonstrated by cyclic voltammetry (CV) and rotating disk electrode (RDE) techniques. The results show that the onset potential for the ORR on Pd5Cu4Pt is shifted by ca. 50 mV to more positive values and enhanced catalytic current densities are observed in comparison to carbon dispersed PdCu and Pd catalysts. The Pd5Cu4Pt tested as cathode electrode in a membrane-electrode assembly (MEA) shows a power density of 330 mW cm−2 at 0.5 V and 80 °C, resulting an attractive low Pt content cathode nanocatalyst for PEM fuel cells." @default.
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- W2029516025 date "2013-09-01" @default.
- W2029516025 modified "2023-09-26" @default.
- W2029516025 title "Pd5Cu4Pt oxygen reduction nanocatalyst for PEM fuel cells" @default.
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- W2029516025 doi "https://doi.org/10.1016/j.ijhydene.2012.11.066" @default.
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