期刊
INORGANIC CHEMISTRY
卷 54, 期 6, 页码 3061-3067出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.5b00266
关键词
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资金
- National Key Basic Research Program of China (973 Program) [2013CB834804]
- Ministry of Science and Technology of China [2012DFH40090]
- Natural Science Foundation of China (NSFC) [21273257, 21471155, 21267025, U1137606]
- Key Research Programme of the Chinese Academy of Science [KGZD-EW-T05]
Although many noble-metal oxide catalysts show high activities and low overpotentials for water oxidation, there remain challenges in the sustainable developments of more inexpensive, efficient, and robust catalysts. Here, we report a heterogeneous copper oxide film toward water oxidation formed upon the oxidative polarization of an acetate electrolyte containing Earth-abundant Cu(II) salts in combination with commercially available triethanolamine (TEOA) as the catalyst precursor. A 1:1 molar ratio of TEOA coordinates to Cu(II) is favored in aqueous solution and the single crystal of the complex was obtained. The film has a modest overpotential of 550 mV and the catalytic performance of the material is demonstrated by long-term electrolysis at 1.3 V vs normal hydrogen electrode, a stable current density persists for at least 3 h, and a Faradaic efficiency of almost 100% is obtained.
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