The formation of protective nitride surfaces for PEM fuel cell metallic bipolar plates

被引：59

作者：

Brady, M. P.

Yang, B.

Wang, H.

Turner, J. A.

More, K. L.

Wilson, M.

Garzon, F.

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[2] Natl Renewable Energy Lab, Golden, CO USA

[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

JOM | 2006年 / 58卷 / 08期

关键词：

D O I：

10.1007/s11837-006-0054-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The selective gas nitridation of model nickel-based alloys was used to form dense, electrically conductive and corrosion-resistant nitride surface layers, including TiN, VN, CrN, Cr,N, as well as a complexNiNb VN-phase. Evaluation for use as a protective surface for metallic bipolar plates in proton exchange membrane fuel cells (PEMFC) indicated that CrNICr2N based surfaces hold promise to meet U.S. Department of Energy (DOE) performatice goals for automotive applications. The thermally grown CrN/Cr,N surface formed on model Ni-Cr based alloys exhibited good stability and low electrical resistance in single-cell fuel cell testing under simulated drive-cycle conditions. Recent results indicate that similar protective chromium nitride surfaces can beformedon less expensive Fe-Cr based alloys potentially capable of meeting DOE cost goals.

引用

页码：50 / 57

页数：8

共 66 条

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