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Open Access Nano Express

The Nature of Surface Oxides on Corrosion-Resistant Nickel Alloy Covered by Alkaline Water

Jiaying Cai1* and DF Gervasio2

Author Affiliations

1 Department of Chemical Engineering, Arizona State University, Tempe, AZ, USA

2 Department of Chemical Engineering, University of Arizona, Tucson, AZ, USA

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Nanoscale Research Letters 2010, 5:613-619  doi:10.1007/s11671-009-9521-5

Published: 5 January 2010


A nickel alloy with high chrome and molybdenum content was found to form a highly resistive and passive oxide layer. The donor density and mobility of ions in the oxide layer has been determined as a function of the electrical potential when alkaline water layers are on the alloy surface in order to account for the relative inertness of the nickel alloy in corrosive environments.

EIS; Mott–Schottky; Bipolar plates; High-temperature PEM fuel cell; Nickel alloy