Investigation of a duplex stainless steel as polymer electrolyte membrane fuel cell bipolar plate material

被引：131

作者：

Wang, HL ^{[1
]}

Teeter, G ^{[1
]}

Turner, J ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2005年 / 152卷 / 03期

关键词：

D O I：

10.1149/1.1854612

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Duplex 2205 stainless steel was investigated in a simulated polymer electrolyte membrane fuel cell (PEMFC) environment; stable passive films formed quickly under these conditions. The interfacial contact resistance (ICR) values for 2205 steel with the air-formed film were identical to those for 349 (TM) and lower than those for ATSI446 steel. The ICR values for the passive film formed in a simulated PEMFC anode environment were lower than those for the passive film formed in the cathode environment, but both were higher than those for air-formed film. X-ray photoelectron spectroscopy analysis revealed that the passive films were mainly Cr2O3 while the air-formed film was composed of Fe-oxides and Cr2O3. An estimate of the thickness of the surface films was made. (c) 2005 The Electrochemical Society. All rights reserved.

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页码：B99 / B104

页数：6

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