JOURNAL ARTICLE

Surface Activation of Electrocatalysis at Oxide Electrodes. Concerted Electron−Proton Transfer

Abstract

Dramatic rate enhancements are observed for the oxidation of phenols, including tyrosine, at indium−tin oxide electrodes modified by the addition of the electron-transfer relays [M<sup>II</sup>(bpy)<sub>2</sub>(4,4′-(HO)<sub>2</sub>P(O)CH<sub>2</sub>)<sub>2</sub>bpy)]<sup>2+</sup> (M = Ru, Os) with clear evidence for the importance of proton-coupled electron transfer and concerted electron−proton transfer.

Keywords:
Electrocatalyst Oxide Electron transfer Catalysis Electrode

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