Application of a proton-electron mechanism to the cathodic reduction of multilayer oxide on a platinum electrode in perchloric acid solution

✍ Scribed by Shigeo Shibata

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 419 KB
• Volume: 29
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(84)87093-0

✦ Synopsis

The electrochemical reduction of the multilayer oxide on smooth Pt electrode in HClO, solution was studied using a galvanostatic technique. This oxide is completely reduced in the potential region where the electrosorption of hydrogen on Pt electrode occurs and the reduction rate depends on the hydrogen coverage. A previously proposed proton-electron mechanism was applied to the reduction of the multilayer oxide. The linear relationship between QH, and log i/Qu,, which is expected from this mechanism, was confirmed in the coverage rzinge of H, from 0.1 to 1, where i is the reduction ram expressed with current density and QH, the quantity of strongly-adsorbed hydrogen on the electrode surface of unit area.