ELECTROLYTICALLY CO-DEPOSITED PLATINUM PALLADIUM ELECTRODES AND THEIR ELECTROCATALYTIC ACTIVITY FOR ETHYLENE-GLYCOL OXIDATION - A SYNERGISTIC EFFECT


DALBAY N., KADIRGAN F.

ELECTROCHIMICA ACTA, vol.36, no.2, pp.353-356, 1991 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 2
  • Publication Date: 1991
  • Doi Number: 10.1016/0013-4686(91)85261-5
  • Title of Journal : ELECTROCHIMICA ACTA
  • Page Numbers: pp.353-356

Abstract

The electrocatalytic oxidation of ethylene glycol has been investigated on platinum-palladium alloy electrodes of different compositions in alkaline aqueous solution. The surface characteristics of the alloys in contact with electrolytic solution have been studied using cyclic voltammetry. X-ray diffraction studies are interpreted to verify homogeneity of electrolytically co-deposited alloys. Enhanced electrocatalytic activity at about 20 at.% in Pd is obtained when compared to pure metals, thus leading to a synergistic effect. An explanation of these effects is suggested on the basis of a decrease of strongly bound residue of ethylene glycol.