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- W2896565315 abstract "In this study, Pt nanoparticles are synthesized on partially graphitic carbons, fluorinated or not. They are characterized for their physicochemical properties and oxygen reduction reaction activity, and tested in membrane electrode assemblies in unit proton exchange membrane fuel cell (PEMFC) cathodes; the results are compared with those of a benchmark TEC10EA40E® commercial electrocatalyst based on a low surface area highly-graphitized carbon. The home-made membrane electrode assemblies (MEAs) show performances approaching those of the commercial standard. The effect of the surfacic fluorination of the carbon is neither positive nor negative for the “load-cycling” protocol (benchmark MEAs optimized with the commercial electrocatalyst are more durable than non-optimized MEAs prepared with the two home-made electrocatalysts). In opposition, the fluorinated carbon-based electrocatalyst is the more durable in the AST mimicking repeated “start/stop” operation, at least in terms of electrochemical area loses. This demonstrates that carbon corrosion can be (at least partially) mitigated/slowed-down for a partially-fluorinated carbon versus the non-fluorinated substrate, leaving hope to enhance the durability of PEMFC cathodes for automotive applications. This study further demonstrates that the fate of (fluorinated) carbon-supported Pt nanoparticles may differ when the materials are operated in polymer versus liquid electrolyte." @default.
- W2896565315 created "2018-10-26" @default.
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- W2896565315 date "2018-11-01" @default.
- W2896565315 modified "2023-10-16" @default.
- W2896565315 title "Utilization of graphitized and fluorinated carbon as platinum nanoparticles supports for application in proton exchange membrane fuel cell cathodes" @default.
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- W2896565315 doi "https://doi.org/10.1016/j.jpowsour.2018.10.004" @default.
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