Electrolytically co-deposited platinum—palladium electrodes and their electrocatalytic activity for ethylene glycol oxidation: a synergistic effect

✍ Scribed by Necla Dalbay; Figen Kadirgan

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 366 KB
• Volume: 36
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(91)85261-5

✦ Synopsis

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.