Tangential and normal conductivities of Nafion® membranes used in polymer electrolyte fuel cells

被引：132
|
作者：
Silva, RF [1 ]
De Francesco, A [1 ]
Pozio, A [1 ]
机构：
[1] ENEA, I-00060 Rome, Italy
来源：
JOURNAL OF POWER SOURCES | 2004年 / 134卷 / 01期
关键词：
ion-exchange membranes; Nafion((R)); conductivity; polymer electrolyte fuel cells;
D O I：
10.1016/j.jpowsour.2004.03.028
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：
Conductivity measurements of Nafion(R) 112, 115 and 117 membranes in the normal direction are reported in this paper. The measurements were made by means of impedance spectroscopy as a function of temperature. The conductivity was measured directly on hot-pressed carbon paper/membrane/carbon paper samples fully immersed in deionized water. The data show that Nafion(R) membranes are really isotropic and that tangential and normal direction conductivity measurements gave the same results when the same hydration level was utilized. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：18 / 26
页数：9
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