Microstructure of PTFE and acid absorption behavior in PTFE-bonded carbon electrodes

被引：5

作者：

Choi, BW ^{[1
]}

Chung, SJ ^{[1
]}

Shin, DR ^{[1
]}

机构：

[1] KOREA INST ENERGY RES,TAEJON 305353,SOUTH KOREA

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 1996年 / 21卷 / 07期

关键词：

D O I：

10.1016/0360-3199(95)00113-1

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：

The microstructure of PTFE and acid absorption characteristics of the electrocatalyst layer of PTFE-bonded gas diffusion electrodes have been investigated. Before sintering, PTFE was in the form of spherical particles and fibrils and was transformed to a lump or honeycomb network of thin film or filaments. By the formation of a high temperature structure of PTFE, the hydrophobicity of the electrocatalyst layer increased and hydrogen chemisorbed Pt fraction and utilization of Pt decreased. Copyright (C) 1996 International Association for Hydrogen Energy

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页码：541 / 546

页数：6

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