Fuel cell catalyst layers containing short-side-chain perfluorosulfonic acid ionomers

被引：57

作者：

Peron, Jennifer ^{[1
]}

Edwards, Dave ^{[1
]}

Haldane, Mark ^{[1
]}

Luo, Xiaoyan ^{[2
]}

Zhang, Yongming ^{[3
]}

Holdcroft, Steven ^{[1
,2
]}

Shi, Zhiqing ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Fuel Cell Innovat, Vancouver, BC V6T 1W5, Canada

[2] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

[3] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 01期

关键词：

Short-side-chain PFSA ionomer; PEMFC; Catalyst layers; Low equivalent weight; Fuel cells; PEM; GAS-DIFFUSION ELECTRODES; HYDRATED MORPHOLOGIES; EQUIVALENT-WEIGHT; ETHER KETONE); CATHODE; PERFORMANCE; MEMBRANES; TECHNOLOGY; OPERATION; DEPENDENCE;

D O I：

10.1016/j.jpowsour.2010.06.050

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Porous catalyst layers (CLs) containing short-side-chain (SSC) perfluorosulfonic acid (PFSA) ionomers of different ion exchange capacity (IEC: 1.3, 1.4 and 1.5 meq g(-1)) were deposited onto Nation 211 to form catalyst-coated membranes. The porosity of SSC-PFSA-based CLs is larger than Nation-CL analogues. CLs incorporating SSC ionomer extend the current density of fuel cell polarization curves at elevated temperature and lower relative humidity compared to those based on long-side chain PFSA (e.g., Nafion)-based CLs. Fuel cell polarization performance was greatly improved at 110 degrees C and 30% relative humidity (RH) when SSC PFSI was incorporated into the catalyst layer. Crown Copyright (c) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：179 / 181

页数：3

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