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• W2790808439 abstract "A series of PtCr/C catalysts was prepared by chemical reduction via the seeding/impregnation technique using sodium borohydride (NaBH4) as the reducing agent and then treated at different temperatures in the range of 500–900 °C under a N2 atmosphere for 2 h at ambient pressure. The effect of heat treatment on the catalyst morphology, oxygen reduction reaction activity and stability in a low temperature/pressure proton exchange membrane (PEM) fuel cell was explored. Increasing the heat treatment temperature within this range increased the degree of alloying, particle sizes, Cr content and in-plane conductivity, but diminished the catalyst dispersion and the electrochemical surface area of all the PtCr/C catalysts. Among all the prepared PtCr/C catalysts, that heat-treated catalyst at 500 °C (PtCr/C-500) was the most promising catalyst for the ORR in a PEM fuel cell under a H2/O2 environment, considered in terms of the catalytic activity and stability." @default.
• W2790808439 created "2018-03-29" @default.
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• W2790808439 date "2018-03-01" @default.
• W2790808439 modified "2023-10-18" @default.
• W2790808439 title "ORR activity and stability of PtCr/C catalysts in a low temperature/pressure PEM fuel cell: Effect of heat treatment temperature" @default.
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• W2790808439 doi "https://doi.org/10.1016/j.ijhydene.2018.01.101" @default.
• W2790808439 hasPublicationYear "2018" @default.
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