CONDUCTANCE OF NAFION-117 MEMBRANES AS A FUNCTION OF TEMPERATURE AND WATER-CONTENT

被引：258

作者：

CAPPADONIA, M

ERNING, JW

NIAKI, SMS

STIMMING, U

机构：

[1] Institute of Energy Process Engineering (IEV), Research Centre Jülich (KFA)

来源：

SOLID STATE IONICS | 1995年 / 77卷

关键词：

CONDUCTANCE; -; NAFION; MEMBRANE-ELECTRODE ASSEMBLY (MEA); PROTON EXCHANGE MEMBRANE FUEL CELLS (PEMFC);

D O I：

10.1016/0167-2738(94)00289-5

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 conductance of Nafion membranes was investigated by means of impedance spectroscopy as a function of temperature and of sample treatment. In addition to other treatments, the hot-pressing of Nafion membranes was also considered, because of its relevance for making membrane-electrode assemblies (MEA) for proton exchange membrane fuel cells (PEMFC). An Arrhenius-type analysis of the conductance shows two regimes, with a change in activation energy observed at transition temperatures between 225 and 260 K which depends on the water content.

引用

页码：65 / 69

页数：5

共 13 条

[1] A NONLINEAR LEAST-SQUARES FIT PROCEDURE FOR ANALYSIS OF IMMITTANCE DATA OF ELECTROCHEMICAL SYSTEMS [J].