title: Chloride-assisted catalytic water oxidation.
abstract: Rates of electrocatalytic water oxidation to oxygen by Ru(II) polypyridyl complexes are enhanced by added NaCl. Observations based on the single-site catalyst [Ru(II)(Mebimpy)(bpy)(OH2)](2+) (Mebimpy is 2,6-bis(1-methylbenzimidazol-2-yl)pyridine; bpy is 2,2'-bipyridine) at pH 7.0 in a phosphate buffer suggest a mechanism involving initial oxidation of the catalyst to Ru(V)(O)(3+) followed by Cl(-) oxidation to HOCl. Once formed, HOCl is oxidized to O2.
authors.affiliation: Department of Chemistry, Tongji University, Shanghai 200092, PR China.
authors.forename: Zuofeng
authors.initials: Z
authors.lastname: Chen
authors.forename: Javier J
authors.initials: JJ
authors.lastname: Concepcion
authors.forename: Na
authors.initials: N
authors.lastname: Song
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Meyer
mesh_terms: D002384:Catalysis; D002712:Chlorides / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D012428:Ruthenium / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D002712:Chlorides; D009942:Organometallic Compounds; D014867:Water; D012428:Ruthenium; D010100:Oxygen