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

Abstract

Abstract 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.

Keywords

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