浸渍Nafion溶液于PEMFC电极催化层中的新方法

电化学（中英文） ›› 2001, Vol. 7 ›› Issue (3): 351-357.

浸渍Nafion溶液于PEMFC电极催化层中的新方法

唐倩,韩明,衣宝廉,林治银

中国科学院大连化学物理研究所!辽宁大连116023,中国科学院大连化学物理研究所!辽宁大连116023,中国科学院大连化学物理研究所!辽宁大连116023,中国科学院大连化学物理研究所!辽宁大连116023

收稿日期:2001-08-28 修回日期:2001-08-28 出版日期:2001-08-28 发布日期:2001-08-28

A New Method for Impregnating Nafion Solution into the Electrode of PEMFC

TANG Qian *,HAN Ming,YI Bao_lian,LIN Zhi_yin

(Dalian Institute of Chemical Physics Chinese Academy of Science, Dalian 116023, China

Received:2001-08-28 Revised:2001-08-28 Published:2001-08-28 Online:2001-08-28

摘要/Abstract

摘要： 本文发展了一种利用毛细作用于自制的疏水电极催化层中浸渍质子导体新方法 ,该电极用于PEMFC ,与传统的喷涂法相比 ,电池性能高 .循环伏安法测得催化剂利用率高 ,电极横截面的SEM和EDX对硫和催化剂铂的线形扫描分析发现 ,该情况下树脂在催化层中分布比较均匀 ,且几乎与催化剂铂的分布深度接近 ,而树脂在传统方法所得的电极催化层中则分布不均匀 ,而且渗进了扩散层 ,极易在阴极被水淹没 (flood)

关键词: EMFC, Nafion树脂, 浸渍法, 喷涂法, 燃料电池性能

Abstract: We have developed a new method for impregnating Nafion solution into the catalyst layer of homemade hydrophobic electrode using capillary process. Those electrodes show better performance and higher utilization of catalyst (detected by CV and TEM) than traditional spray method in PEMFC. According to the results of SEM photograph and linear_analysis of sulfur and platinum for the electrode cross_section, we can conclude that the resin is uniform in the catalyst layer and has almost same depth as catalyst in the impregnated electrode. While in traditional method resin is not uniform in the catalyst layer and penetrates into the diffusion layer, cathode will be flooded in this condition.

Key words: PEMFC, Nafion, Impregnate method, Spray method, Performance of FC

中图分类号:

TM911.4

唐倩,韩明,衣宝廉,林治银. 浸渍Nafion溶液于PEMFC电极催化层中的新方法[J]. 电化学（中英文）, 2001, 7(3): 351-357.

TANG Qian *,HAN Ming,YI Bao_lian,LIN Zhi_yin . A New Method for Impregnating Nafion Solution into the Electrode of PEMFC[J]. Journal of Electrochemistry, 2001, 7(3): 351-357.

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链接本文: https://electrochem.xmu.edu.cn/CN/

https://electrochem.xmu.edu.cn/CN/Y2001/V7/I3/351

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