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Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
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Highly active hollow mesoporous NiFeCr hydroxide as an electrode material for the oxygen evolution reaction and a
Ding Zhang1, Zhaoguang Yang, Ying Yang
1College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China. yangy@csu.edu.cn.
Abstract:
A hollow mesoporous trimetallic NiFeCr hydroxide electrode is prepared via a four-step procedure involving the fast electrodeposition of an Ni/Cr/Fe alloy onto a nickel foam substrate, followed by dealloying, oxidation, and activation. The title electrode shows an ultralow onset overpotential of 210 mV for the oxygen evolution reaction and a high specific capacity of 1768 F g-1 as a redox capacitor.

