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An All-Inorganic, Stable, and Highly Active Tetraruthenium Homogeneous Catalyst for Water Oxidation

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  • This work was supported by the following grants to C.L.H. & D.G.M.: U.S. Department of Energy (DE-FG02-03ER15461 and DE-FG02-06ER06-15). We thank Ken Hardcastle and Rui Cao for X-ray crystallographic efforts.

Abstract

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Oxidation without organics: A tetraruthenium polyoxometalate (see picture; Ru blue, O red, Si yellow, W black) catalyzes the rapid oxidation of H2O to O2 in water at ambient temperature, and shows considerable stability under turnover conditions. The complex was characterized by several methods, including X-ray crystallography and cyclic voltammetry.

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