Influence of the structure in low-Pt loading electrodes for polymer electrolyte fuel cells

被引：120

作者：

Passalacqua, E

Lufrano, F

Squadrito, G

Patti, A

Giorgi, L

机构：

[1] CNR, Ist TAE, Messina, Italy

[2] ENEA, CRE, ERG, TEA,ECHI, Rome, Italy

来源：

ELECTROCHIMICA ACTA | 1998年 / 43卷 / 24期

关键词：

polymer electrolyte fuel cells; gas diffusion backing; Pt loading; mass activity; oxygen gain;

D O I：

10.1016/S0013-4686(98)00124-8

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 structure and composition of the electrodes on a polymer electrolyte fuel cell (PEFC) performance has been investigated. Electrodes have been prepared by varying the composition of diffusion and/or catalyst layer. Improvements have been obtained by introducing a hydrophobic carbon layer between the carbon paper and the catalyst layer for the gas diffusion backing. High performance has been achieved with low Pt-loading electrodes (0.15 mg/cm(2)) by including the ionomer Nafion in the catalyst ink. Electrodes have been characterized by SEM-EDX analyses and electrochemical tests in a 50 cm(2) single cell. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：3665 / 3673

页数：9

共 16 条

[1]

FERREIRA AC, 1992, ELECTROCHEMICAL SOC, V921, P11

[2]

FOSTER SE, 1994, 1994 FUEL CELL SEM S, P442

[3] AN INVESTIGATION OF THE EFFECTS OF ELECTRODE PREPARATION PARAMETERS ON THE PERFORMANCE OF PHOSPHORIC-ACID FUEL-CELL CATHODES [J].