Related Experiment Video
Updated: Apr 21, 2026

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
Published on: August 23, 2018
Selective electrocatalytic oxidation of a re-methyl complex to methanol by a surface-bound Ru(II) polypyridyl
Michael K Coggins1, Manuel A Méndez, Javier J Concepcion
1Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States.
Abstract:
The complex [Ru(Mebimpy)(4,4'-((HO)2OPCH2)2bpy)(OH2)](2+) surface bound to tin-doped indium oxide mesoporous nanoparticle film electrodes (nanoITO-Ru(II)(OH2)(2+)) is an electrocatalyst for the selective oxidation of methylrhenium trioxide (MTO) to methanol in acidic aqueous solution. Oxidative activation of the catalyst to nanoITO-Ru(IV)(OH)(3+) induces oxidation of MTO. The reaction is first order in MTO with rate saturation observed at [MTO] > 12 mM with a limiting rate constant of k = 25 s(-1). Methanol is formed selectively in 87% Faradaic yield in controlled potential electrolyses at 1.3 V vs NHE. At higher potentials, oxidation of MTO by nanoITO-Ru(V)(O)(3+) leads to multiple electrolysis products. The results of an electrochemical kinetics study point to a mechanism in which surface oxidation to nanoITO-Ru(IV)(OH)(3+) is followed by direct insertion into the rhenium-methyl bond of MTO with a detectable intermediate.
More Related Videos
09:17Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes
Published on: January 30, 2015
10:51The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Related Concept Videos
Oxymercuration-Reduction of Alkenes
Heterogeneous Catalysis
Sharpless Epoxidation
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Hydroboration-Oxidation of Alkenes
Radical Oxidation of Allylic and Benzylic Alcohols