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- W4200229265 abstract "Catalyst slurries (inks) were prepared with and without thermal treatment to determine the support/ionomer structures and interactions in the catalyst layer (CL) which impact on membrane electrode performance and durability. The thermal treatment of the ink has a nominal effect on the ionomer/support structure in which the carbon support is non-graphitised. The agglomerate/aggregate structures have a high degree of support/ionomer interface and sufficient macroporosity for water movement in the CL. This improves the membrane electrode assembly (MEA) performance, but also accelerates electrochemical carbon degradation. Thermal treatment of graphitised support-containing inks resulted in increased performance facilitated by a larger support/ionomer interface. Without thermal treatment, the more hydrophobic support would form aggregate structures in which water contact was restricted, limiting proton transfer, isolating catalyst, decreasing performance. The water limited access, would however, prolong stability during accelerates carbon degradation. The electrochemical properties were studied using full and half MEA cells." @default.
- W4200229265 created "2021-12-31" @default.
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- W4200229265 date "2021-12-01" @default.
- W4200229265 modified "2023-09-23" @default.
- W4200229265 title "The impact of the thermal treatment during ink preparation on the ionomer-supported catalyst interactions in the catalyst layers" @default.
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- W4200229265 doi "https://doi.org/10.1016/j.ijhydene.2021.12.060" @default.
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