Influence of counter-ions on the permeability of polypyrrole films to hydrogen

被引：13

作者：

Holzhauser, P. ^{[1
]}

Bouzek, K. ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Inorgan Technol, CR-16628 Prague 6, Czech Republic

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2006年 / 36卷 / 06期

关键词：

counter-ion; Nafion (R); permeability; polypyrrole; proton exchange membrane fuel cell (PEM FC);

D O I：

10.1007/s10800-006-9132-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The influence of the size and nature of counter-ions on the permeability of polypyrrole films to hydrogen was tested. The permeabilities were determined using the method of limiting currents on a Pt rotating disc electrode with subsequent Koutecky-Levich analysis. The work has focused mainly on the influence of the anion size, but the effect of polymeric anion hydrophilicity was also considered. Attention was especially paid to Nafion(R) as a counter-ion. It was found that Nafion(R) markedly increases polypyrrole permeability. The film growth was followed by means of EQCN, which allowed determination of the polypyrrole film densities.

引用

页码：703 / 710

页数：8

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