基于钴纳米结构的光化学水氧化催化剂的合成。
Photochemical synthesis of a water oxidation catalyst based on cobalt nanostructures.
机构信息
Centre for Catalysis Research and Innovation and Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa K1N 6N5, Canada.
出版信息
J Am Chem Soc. 2011 Oct 26;133(42):16742-5. doi: 10.1021/ja206280g. Epub 2011 Oct 3.
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.
新型钴基纳米复合材料通过 Co(2+)盐的光还原制备而成，生成的钴纳米颗粒沉积在碳基材料上，如纳米晶金刚石和碳纤维毡。自发的空气氧化将金属转化为 Co(2)O(3)，该氧化物已被测试为水氧化催化剂。这项工作表明，钴氧化物纳米结构可以沉积在各种碳表面上，并可以在阳极偏压下催化水的四电子氧化为氧气。
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