Electrolyte-Dependent Electrosynthesis and Activity of Cobalt-Based Water Oxidation Catalysts

被引:573
作者
Surendranath, Yogesh [1 ]
Dinca, Mircea [1 ]
Nocera, Daniel G. [1 ]
机构
[1] MIT, Dept Chem, Cambridge, MA 02139 USA
基金
美国国家科学基金会;
关键词
OXYGEN;
D O I
10.1021/ja807769r
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Electrolysis of CO2+ in phosphate, m ethyl phosphonate, and borate electrolytes effects the electrodeposition of an amorphous highly active water oxidation catalyst as a thin film on an inert anode. Electrodeposition of a catalytically competent species immediately follows oxidation of CO2+ to CO3+ in solution. M ethyl phosphonate and borate electrolytes support catalyst activity comparable to that observed for phosphate. Catalytic activity for O-2 generation in aqueous solutions containing 0.5 M NaCl is retained for catalysts grown from phosphate electrolyte.
引用
收藏
页码:2615 / 2620
页数:6
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