Hydrogen/oxygen polymer electrolyte membrane fuel cell (PEMFC) based on acid-doped polybenzimidazole (PBI)

被引：0
|
作者：
Savadogo, O [1 ]
Xing, B [1 ]
机构：
[1] Ecole Polytech, Lab Electrochim & Mat Energet, Montreal, PQ H3C 3A7, Canada
来源：
JOURNAL OF NEW MATERIALS FOR ELECTROCHEMICAL SYSTEMS | 2000年 / 3卷 / 04期
关键词：
sulphuric-acid-doped PBI; phosphoric-acid-doped PBI; non-humidified PBI membrane; improved H-2/O-2 PEMFC; resistance to 3%CO poisoning;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The potential-current characteristics of a H-2/O-2 polymer electrolyte membrane fuel cell using H2SO4 or H3PO4 doped PBI were studied for the first time. The conditions involved in the doping of PBI with sulphuric acid or phosphoric acid and the preparation of a membrane electrode assembly (MEA) using these membranes were determined The potential-current fuel-cell characteristics of MEAs using H2SO4-doped PBI were compared to those of MEAs using Nafion(R) 117. The effects of membrane doping and of drying times on the fuel-cell performances of MEAs based on PBI doped with sulphuric acid in various conditions were determined. It was shown that MEAs based on H2SO4- doped PBI and non-humidified exhibited higher fuel-cell characteristics than MEAs based on Nafion(R) 17. The fuel-cell characteristics of MEAs based on phosphoric-acid-doped PBI exhibited high performances at 185 degrees C even with fuelled with hydrogen containing 3% CO.
引用
收藏
页码：343 / 347
页数：5
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