Photochemical synthesis of a water oxidation catalyst based on cobalt nanostructures |
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Authors: | Wee Tse-Luen Sherman Benjamin D Gust Devens Moore Ana L Moore Thomas A Liu Yun Scaiano Juan C |
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Institution: | Centre for Catalysis Research and Innovation and Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa K1N 6N5, Canada. |
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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. |
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