Zirconium phosphate/Nafion115 composite membrane for high-concentration DMFC

被引：86

作者：

Hou, Hongying ^{[1
,3
]}

Sun, Gongquan ^{[1
]}

Wu, Zhimou ^{[1
,3
]}

Jin, Wei ^{[1
,3
]}

Xin, Qin ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cells Lab, Dalian 116023, Peoples R China

[2] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 13期

基金：

中国国家自然科学基金;

关键词：

ZrP/Nafion115; methanol crossover; DMFC durability;

D O I：

10.1016/j.ijhydene.2008.03.060

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：

Zirconium phosphate/Nafion115 (ZrP/Nafion115) composite membrane was prepared. It was characterized by means of XRD, EDX, ion-exchange capacity (IEC), thermogravimetry analysis (TGA) and so on. The results suggested that the mean particle size of zirconium phosphate within the composite membrane was about 5.0 nm. The composite membrane had comparable thermal stability with Nafion115, and its IEC markedly increased. The methanol crossover through it decreased by about 50% compared with that through Nafion115, while the proton conductivity slightly decreased. The single performance tests demonstrated that the use of composite membrane reduced mass transport polarization, thus resulting in better cell performance at 75 degrees C with higher methanol concentration (10M) as fuel. The preliminary result of durability test showed that the single cell with composite membrane can stably run 100h above 0.4V. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：3402 / 3409

页数：8

共 24 条

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