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- W2019295529 abstract "The use of auxiliary power and the cost of using main power decrease when the reactive gas is applied at low humidity for the operation of polymer electrolyte membrane fuel cells. The electrolyte membrane and the three-phase boundary of the electrode need to be improved to maintain this low humidity. We carried out a study of the electrode catalyst at low humidity in order to improve the cathode catalyst. Carbon support with a catalyst and fluorocarbon resin were mixed and then were treated at the melting temperature of fluorocarbon resin to fabricate the cathode-electrode catalyst layer. The transmission electron microscopy images of this electrode catalyst revealed that the surfaces of the catalyst particle and the carbon support were partly coated with a thin film of melted fluorocarbon resin. Ionomer electrolyte material was added to this electrode catalyst, and an electrode catalyst with a four-layer structure was fabricated. The durability of this four-layer electrode catalyst being operated at low humidity (42% relative humidity on the anode and the cathode) was evaluated by using a cell that contained the catalyst. The results demonstrated that the rate of deterioration was smaller than that of a conventional three-layer electrode catalyst. In addition, the load change test to assess the durability of the cell (current range between 75 and 600 mA cm−2) produced good results." @default.
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- W2019295529 date "2009-07-01" @default.
- W2019295529 modified "2023-10-17" @default.
- W2019295529 title "Investigation into polymer electrolyte membrane fuel cell characteristics using four-layer electrode catalyst" @default.
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- W2019295529 doi "https://doi.org/10.1063/1.3167284" @default.
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