Influence of Ionomer/Carbon Ratio on the Performance of a Polymer Electrolyte Fuel Cell
AbstractWe have used fibrous carbon materials as polymer electrolyte fuel cell (PEFC) electrodes. We have examined the influence of the ionomer/carbon ratio on the performance of the PEFCs. The Marimo carbon is a kind of carbon with a spherical shape, and consists of carbon nanofilaments. Fibrous carbon materials have large specific surface areas without fine pores. The reactant gases and generated water can easily diffuse among the nanofilaments. The ionomer plays two roles; one is a proton transfer activity, and the other is binding the catalyst electrodes. An excess ionomer interferes with the diffusion of gases. The ionomer/carbon ratio should affect the performance of the PEFC, especially at a high current density.
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Eguchi, M.; Baba, K.; Onuma, T.; Yoshida, K.; Iwasawa, K.; Kobayashi, Y.; Uno, K.; Komatsu, K.; Kobori, M.; Nishitani-Gamo, M.; Ando, T. Influence of Ionomer/Carbon Ratio on the Performance of a Polymer Electrolyte Fuel Cell. Polymers 2012, 4, 1645-1656.
Eguchi M, Baba K, Onuma T, Yoshida K, Iwasawa K, Kobayashi Y, Uno K, Komatsu K, Kobori M, Nishitani-Gamo M, Ando T. Influence of Ionomer/Carbon Ratio on the Performance of a Polymer Electrolyte Fuel Cell. Polymers. 2012; 4(4):1645-1656.Chicago/Turabian Style
Eguchi, Mika; Baba, Koki; Onuma, Takamitsu; Yoshida, Kazuma; Iwasawa, Kenta; Kobayashi, Yoshio; Uno, Katsuhiro; Komatsu, Keishiro; Kobori, Maya; Nishitani-Gamo, Mikka; Ando, Toshihiro. 2012. "Influence of Ionomer/Carbon Ratio on the Performance of a Polymer Electrolyte Fuel Cell." Polymers 4, no. 4: 1645-1656.