Electro-osmotic drag of methanol in proton exchange membranes

被引：0

作者：

Tschinder, T. ^{[1
]}

Schaffer, T. ^{[1
]}

Fraser, S. D. ^{[1
]}

Hacker, V. ^{[1
]}

机构：

[1] Graz Univ Technol, Inst Chem & Technol Inorgan Mat, CD Lab Fuel Cell Syst, A-8010 Graz, Austria

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2007年 / 37卷 / 06期

关键词：

electro-osmosis; electro-osmotic drag coefficient; proton exchange membrane; direct methanol fuel cell; DMFC;

D O I：

10.1007/s10800-007-9304-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A good understanding of the fundamental transport phenomena of water and methanol in PSA (Perfluoro Sulfonic Acid) membranes is one of the keys in developing efficient direct methanol fuel cells (DMFCs). Electro-osmosis, being one of the most important water and methanol transport mechanisms in DMFCs, has been investigated with a number of different proton exchange membranes. Two aspects were of particular interest: firstly, the interdependencies between the electro-osmotic drag coefficient and methanol concentration and temperature, and secondly the interdependence between the electro-osmotic drag coefficient and current density. The results of these investigations are compared to published data.

引用

页码：711 / 716

页数：6

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