title: Photochemical synthesis of a water oxidation catalyst based on cobalt nanostructures.
abstract: New cobalt-based nanocomposites have been prepared by photoreduction of Co(2+) salts to generate cobalt nanoparticles deposited on carbon-based materials such as nanocyrstalline diamond and carbon felt. Spontaneous air oxidation converts the metal to Co(2)O(3) which has been tested as a water oxidation catalyst. This work demonstrates that the cobalt oxide nanostructures can be deposited on various carbon surfaces and can catalyze the four-electron oxidation of water to oxygen under anodic bias.
authors.affiliation: Centre for Catalysis Research and Innovation and Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa K1N 6N5, Canada.
authors.forename: Tse-Luen
authors.initials: TL
authors.lastname: Wee
authors.forename: Benjamin D
authors.initials: BD
authors.lastname: Sherman
authors.forename: Devens
authors.initials: D
authors.lastname: Gust
authors.forename: Ana L
authors.initials: AL
authors.lastname: Moore
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Moore
authors.forename: Yun
authors.initials: Y
authors.lastname: Liu
authors.forename: Juan C
authors.initials: JC
authors.lastname: Scaiano
mesh_terms: D002384:Catalysis; D003035:Cobalt / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D010084:Oxidation-Reduction; D010777:Photochemistry; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D014867:Water; D003035:Cobalt