Investigation of grafted ETFE-based polymer membranes as alternative electrolyte for direct methanol fuel cells

被引：72

作者：

Aricò, AS

Baglio, V

Cretì, P

Di Blasi, A

Antonucci, V

Brunea, J

Chapotot, A

Bozzi, A

Schoemans, J

机构：

[1] CNR, ITAE Inst, I-98126 Messina, Italy

[2] Solvay DCRT Membranes, B-1120 Brussels, Belgium

来源：

JOURNAL OF POWER SOURCES | 2003年 / 123卷 / 02期

关键词：

grafted membranes; ETFE polymer; direct methanol fuel cells; cross-over; cycled operation;

D O I：

10.1016/S0378-7753(03)00528-7

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：

Low cost ethylene-tetrafluoroethylene (ETFE)-based grafted membranes have been prepared by a process based on electron beam irradiation, subsequent grafting, cross-linking and sulfonation procedure. Two different grafted membranes varying by their grafting and cross-linking levels have been investigated for applications in direct methanol fuel cells (DMFCs) operating between 90 and 130degreesC. DMFC assemblies based on these membranes showed cell resistance and performance values comparable to Nation 117. Stable electrochemical performance was recorded during I month of cycled operation. Tailoring of grafting and cross-linking properties allows a significant reduction of methanol cross-over while maintaining suitable conductivity and performance levels. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：107 / 115

页数：9

共 22 条

[1] Silicon oxide Nafion composite membranes for proton-exchange membrane fuel cell operation at 80-140° C [J].