Influence of Ionomer/Carbon Ratio on the Performance of a Polymer Electrolyte Fuel Cell

被引：37

作者：

Eguchi, Mika ^{[1
]}

Baba, Koki ^{[1
]}

Onuma, Takamitsu ^{[1
]}

Yoshida, Kazuma ^{[1
]}

Iwasawa, Kenta ^{[1
]}

Kobayashi, Yoshio ^{[1
]}

Uno, Katsuhiro ^{[2
]}

Komatsu, Keishiro ^{[3
]}

Kobori, Maya ^{[3
]}

Nishitani-Gamo, Mikka ^{[3
]}

Ando, Toshihiro ^{[4
]}

机构：

[1] Ibaraki Univ, Dept Biomol Funct Engn, Hitachi, Ibaraki 3168511, Japan

[2] Ibaraki Univ, Dept Media & Telecommun Engn, Hitachi, Ibaraki 3168511, Japan

[3] Toyo Univ, Dept Appl Chem, Kawagoe, Saitama 3508585, Japan

[4] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

来源：

POLYMERS | 2012年 / 4卷 / 04期

关键词：

polymer electrolyte fuel cell; Pt catalyst; ionomer content; carbon nanofilaments; Marimo carbon; Nafion; MEA; nanocolloidal method; SPHERICAL CARBON; MEMBRANE; CATALYST; PEMFC; PEFC;

D O I：

10.3390/polym4041645

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We 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.

引用

页码：1645 / 1656

页数：12

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