Sulfated zirconia-Nafion composite membranes for higher temperature direct methanol fuel cells

被引：66

作者：

Ren, Suzhen ^{[1
]}

Sun, Gongquan

Li, Chennan

Song, Shuqin

Xin, Qin

Yang, Xuefeng

机构：

[1] Chinese Acad Sci, Direct Alcohol Fuel Cell Lab, Dalian Inst Chem Phys, Beijing 100864, Peoples R China

[2] Dalian Univ Technol, Lab Plasma Phys Chem, Dalian 116023, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2006年 / 157卷 / 02期

关键词：

direct methanol fuel cell (DMFC); sulfated zirconia; proton conductivity; water uptake retention; Nafion((R)); composite membrane;

D O I：

10.1016/j.jpowsour.2006.01.001

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：

A sulfated zirconia/Nafion (R) 115 nanocomposite membrane is prepared by ion-exchange of zirconium ions into the Nafion followed by precipitation of sulphated ZrO2 by treatment in 5 M H2SO4 at 80 degrees C. The incorporation of sulfated zirconia increases water uptake by the Nation membrane, and importantly, more water is absorbed than by an unmodified membrane at high temperatures. The proton conductivity of the composite membrane is evaluated and compared with that of an unmodified Nafion (R) 115 membrane. The nanocomposite membrane experiences a smaller decrease in proton conductivity than the Nafion (R) 115 membrane at high temperatures. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：724 / 726

页数：3

共 14 条

[1] Polymeric proton conducting membranes for medium temperature fuel cells (110-160°C) [J].