Optimization of operating parameters of a direct methanol fuel cell and physico-chemical investigation of catalyst-electrolyte interface

被引：100

作者：

Arico, AS

Creti, P

Antonucci, PL

Cho, J

Kim, H

Antonucci, V

机构：

[1] CNR, Ist TAE, I-98126 Messina, Italy

[2] Univ Reggio Calabria, Inst Chem, I-89100 Reggio Calabria, Italy

[3] Seoul Natl Univ, Dept Chem, Seoul 151742, South Korea

[4] Seoul Natl Univ, Ctr Mol Catalysis, Seoul 151742, South Korea

来源：

ELECTROCHIMICA ACTA | 1998年 / 43卷 / 24期

关键词：

direct methanol fuel cells; Nafion (R); Pt-Ru catalyst; M&E assembly;

D O I：

10.1016/S0013-4686(98)00130-3

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A physico-chemical investigation of catalyst-Nafion(R) electrolyte interface of a direct methanol fuel cell (DMFC), based on a Pt-Ru/C anode catalyst, was carried out by XRD, SEM-EDAX and TEM. No interaction between catalyst and electrolyte was detected and no significant interconnected network of Nafion micelles inside the composite catalyst layer was observed. The influence of some operating parameters on the performance of the DMFC was investigated. Optimal conditions were 2 M methanol, 5 atm cathode pressure and 2-3 atm anode pressure. Power densities of 110 and 160 mW cm(-2) were obtained for operation with air and oxygen, respectively, at temperatures of 95-100 degrees C and with 1 mg cm(-2) Pt loading. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：3719 / 3729

页数：11

共 16 条

[1]

ARICO AD, 1996, J ELECTROCHEM SOC, V142, P3950

[2]

Arico AS, 1996, J APPL ELECTROCHEM, V26, P959, DOI 10.1007/BF00242049

[3] SMALL-ANGLE X-RAY-SCATTERING STUDY OF PERFLUORINATED IONOMER MEMBRANES .1. ORIGIN OF 2 SCATTERING MAXIMA [J].