Preparation, characterization and proton conductivity of membrane based on zirconium tricarboxybutylphosphonate and polybenzimidazole for fuel cells

被引：20

作者：

Jang, MY ^{[1
]}

Yamazaki, Y ^{[1
]}

机构：

[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Innovat & Engineered Mat, Midori Ku, Yokohama, Kanagawa 2268502, Japan

来源：

SOLID STATE IONICS | 2004年 / 167卷 / 1-2期

关键词：

zirconium tricarboxybutylphosphonate; polybenzimidazole; composite membrane; intermediate temperature operation; fuel cell;

D O I：

10.1016/j.ssi.2003.12.003

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 tricarboxybutylphosphonate, Zr(O3PC(CH2)(3) (COOH)(3))(2), was synthesized to prepare inorganic/organic composite membranes based on polybenzimidazole (PBI). The characteristics of zirconium tricarboxybutyl-phosphonate (Zr(PBTC)) and of the membranes formed by this and PBI were studied by X-ray diffraction, FTIR, and TG analysis. Both the compacted powers Zr(PBTC) and the Zr(PBTC)/PBI membranes were thermally stable and the conductivities measured on Zr(PBTC) and a sample of the PBI-based membrane with 50 wt.% Zr(PBTC) gave values of 6.74 x 10(-2) and 3.82 x 10(-3) S cm(-1) at 200 degreesC under PH2O/P-s = 1, respectively. The treatment to make PBI with charactetistic of proton conductivity influenced positively the proton conductivity of PBI-based membrane with 50 wt.% Zr(PBTC). This membrane presented a proton conductivity of 5.24 x 10(-3) S cm(-1) under the same measurement conditions. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：107 / 112

页数：6