Abstract

Enabling a hydrogen fuel-based economy is reliant on the discovery of materials that catalyze the electrolysis of water which requires low-cost catalytic electrodes to improve the kinetics of the oxygen evolution reaction. Fe2.5Ni2.5Sn3, was prepared by arc-melting and electrochemical studies were conducted to evaluate its ability to catalyze the oxygen evolution reaction. Potentiodynamic polarization testing revealed that the Fe2.5Ni2.5Sn3 alloy had a Tafel slope of 40 mV/decade and required an overpotential of 326 mV in order to obtain a current density of 10 mA/cm2. X-ray photoelectron spectroscopy studies indicated that the native oxide present on the surface became hydrated upon subjecting it to oxygen evolution studies.

This content is only available via PDF.
You do not currently have access to this content.