M.P. Brady, B. Yang
Proton exchange membrane fuel cells (PEMFCs) are gaining attention for their high efficiency and near-zero emissions in power generation applications. This paper aims to explore the formation of protective nitride surfaces on metallic bipolar plates to enhance their performance and durability. The methodology involved selective gas nitridation of model nickel-based alloys to create dense, electrically conductive, and corrosion-resistant nitride surface layers, including TiN, VN, CrN, and Cr2N, as well as a complex NiNbVN phase. The resulting CrN/Cr2N based surfaces are evaluated for their potential as protective layers for bipolar plates in PEMFCs, with testing indicating they exhibit good stability and low electrical resistance under simulated drive-cycle conditions. Results demonstrate that these nitrided surfaces can meet U.S. Department of Energy (DOE) performance goals, with promising opportunities for application in automotive technologies. Additionally, similar chromium nitride surfaces formed on less expensive Fe-Cr based alloys suggest a pathway for achieving DOE cost goals. This study provides fundamental insights into the development of robust and cost-effective materials for next-generation fuel cell systems.
@article{cbdf5bdf-1f72-4300-9652-fef3fa45b6d1,
title={The Formation of Protective Nitride Surfaces for PEM Fuel Cell Metallic Bipolar Plates},
author={M.P. Brady and B. Yang},
year={2005},
language={en}
}TY - JOUR TI - The Formation of Protective Nitride Surfaces for PEM Fuel Cell Metallic Bipolar Plates AU - M.P. Brady AU - B. Yang PY - 2005 LA - en ER -
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