High DMFC performance output using modified acid-base polymer blend

被引：55

作者：

Pasupathi, Sivakumar ^{[1
]}

Ji, Shan ^{[1
]}

Bladergroen, Bernard Jan ^{[1
]}

Linkov, Vladimir ^{[1
]}

机构：

[1] Univ Western Cape, SAIAMC, ZA-7535 Bellville, South Africa

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

proton conducting membranes; polymer blend; DMFC; SPEEK; PBI; power densities;

D O I：

10.1016/j.ijhydene.2008.01.033

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：

An acid-base polymer blend membrane based on sulphonated poly(etheretherketone) (SPEEK) and poly(benzimidazole) (PBI) was developed for direct methanol fuel cells. Thermal stability, water uptake, ion exchange capacity, conductivity and fuel cell performance of the membrane were studied and compared to that of nafion. The conductivity of nafion was found to be superior to SPEEK/PBI membrane; however, the thickness of SPEEK/PBI membranes can be reduced considerably. SPEEK/PBI membrane with a thickness of 55 mu m showed a significant improvement in the DMFC performance as compared to Nafion 117. The maximum power densities obtained with SPEEK/PBI membranes are twice better than. Nafion 117 at 60 degrees C. SPEEK/PBI membranes showed excellent stability under DMFC operating conditions up to 60 degrees C and therefore are seen as ideal candidates for portable DMFC applications. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：3132 / 3136

页数：5

共 16 条

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