Electroless amorphous alloy electrodes

Abstract

Amorphous alloys (Co_94.6P_5.4 and Co_71.6Ni Is_18.3aP_10.1) were prepared by the eleetroless teehnique. Oxide coated amorphous alloys were produced by applying a cyclic potential routine to the amorphous alloys immersed in alkaline solution at 30°C. Oxide coatings were character&d by electrochemical techniques and ir spectroscopy. The electrocatalytic activity of oxide coated amorphous alloy electrodes was tested for the oxygen evolution reaction in alkaline solution at 30°C. The high electrocatalytic activity of these electrodes is explained through the development of a porous hydrous oxide film with a spinel-type structure.