Is H2O2 involved in the membrane degradation mechanism in PEMFC?

被引：116

作者：

Mittal, VO ^{[1
]}

Kunz, HR

Fenton, JM

机构：

[1] Univ Connecticut, Dept Chem Engn, Storrs, CT 06269 USA

[2] Univ Cent Florida, Florida Solar Energy Ctr, Cocoa, FL 32922 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2006年 / 9卷 / 06期

关键词：

D O I：

10.1149/1.2192696

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The involvement of H2O2 in the membrane degradation mechanism in a polymer electrolyte membrane fuel cell (PEMFC) was investigated. Measurement of fluoride concentration in the effluent water was used as an indicator of the membrane degradation rate. It was found that H2O2 is formed in the fuel cell in small concentrations but is not the main source of harmful species, which degrade the membrane. H2O2 decomposition due to impurities or the catalyst leading to the possible formation of radical species would only account for a small fraction of the membrane degradation rate in a fuel cell.

引用

页码：A299 / A302

页数：4

共 12 条

[1] Naflon perfluorinated membranes treated in Fenton media: radical species detected by ESR spectroscopy [J].

Bosnjakovic, A ;

Schlick, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (14) :4332-4337

[2] Advanced materials for improved PEMFC performance and life [J].

Curtin, DE ;

Lousenberg, RD ;

Henry, TJ ;

Tangeman, PC ;

Tisack, ME .

JOURNAL OF POWER SOURCES, 2004, 131 (1-2) :41-48

[3] THERMODYNAMICS OF THE HYDROGEN-PEROXIDE WATER-SYSTEM [J].

HWANG, H ;

DASGUPTA, PK .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1985, 19 (03) :255-258

[4]

LACONTI AB, 2003, HDB FUEL CELLS FUNDA, pCH49

[5]

LIU H, 2005, EL SOC M ABSTR LOS A

[6]

MITTAL VO, IN PRESS J ELECTROCH

[7] Oxygen reduction on a high-surface area Pt/Vulcan carbon catalyst: a thin-film rotating ring-disk electrode study [J].

Paulus, UA ;

Schmidt, TJ ;

Gasteiger, HA ;

Behm, RJ .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 495 (02) :134-145

[8] POLYMER MEMBRANES FOR FUEL-CELLS [J].

SCHERER, GG .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1990, 94 (09) :1008-1014

[9]

TAKESHITA T, 2005, EL SOC M ABSTR QUEB

[10] FENTONS REAGENT REVISITED [J].

WALLING, C .

ACCOUNTS OF CHEMICAL RESEARCH, 1975, 8 (04) :125-131

← 1 2 →