Memoirs of the Faculty of Engineering, Okayama University
Published by Faculty of Enginerring, Okayama University

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Memoirs of the School of Engineering, Okayama University

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Electrochemistry of Redox Reaction I. On the Kinetic Equations for Rotating Disk Technique

Ohzuku Tsutomu Department of Synthetic Chemistry
Hirai Taketsugu Department of Applied Chemistry, Faculty of Engineering, Osaka City University
An equation on the current-polarization voltage characteristics of single charge transfer redox reaction on a rotating disk electrode (RDE) was given and a curvefitting method to determine kinetic parameters from an observed polarization curve was proposed therefrom. The method was demonstrated for Fe(2+)/Fe(3+)redox reaction in acidic aqueous electrolyte on Pt-RDE and the limitation of the method was discussed. The extension of the method to multistep charge transfer reaction was also considered.