A proton-conducting composite membrane Sn0 95Al0 05P2O7 and polystyrene-b-poly(ethylene/propylene)-b-polystyrene

被引：22

作者：

Jin, Yongcheng ^{[1
]}

Hibino, Takashi ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Nagoya, Aichi 4648601, Japan

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 28期

关键词：

Composite membrane; Anhydrous proton conductor; Proton exchange membrane fuel cells; High-temperature operation; Low humidity operation; TEMPERATURE FUEL-CELLS; DOPED SNP2O7;

D O I：

10.1016/j.electacta.2010.07.043

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An anhydrous proton conductor Sn0 95Al0 05P2O7 (SAPO) composed of polystyrene-b-poly(ethylene/propylene)-b-polystyrene (SEPS) was developed and chai acterized using morphological structural and electrochemical analyses In the composite membrane with 20 wt% SEPS a homogeneous distribution of SAPO particles in the matrix was obtained in the thickness range of 65-90 mu m yielding a proton conductivity of 3 4 x 10(-3) S cm(-1) at 200 C tensile strength of 4 6 MPa and an elongation at break of 711 0% at room temperature Fuel cell tests verified that the open-circuit voltage was maintained at a constant value of approximately 1 V between 100 and 250 C The peak power densities achieved with unhumidifined H-2 and air were 77 0 mW cm(-2) at 100 C 121 0 mW cm(-2) at 150 C and 163 1 mW cm(-2) at 225 C (C) 2010 Elsevier Ltd All rights reserved

引用

页码：8371 / 8375

页数：5

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