期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 135, 期 11, 页码 4219-4222出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja400402d
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资金
- National Basic Research Program of China (973 program) [2009CB220009]
- National Natural Science Foundation of China [20923006, 21003017, 21120102036, 21106015, 91233201]
- Fundamental Research Funds for the Central Universities
- Swedish Energy Agency
- K & A Wallenberg Foundation
A molecular water oxidation catalyst (2) has been synthesized and immobilized together with a molecular photosensitizer (1) on nanostructured TiO2 particles on FTO conducting glass, forming a photoactive anode (TiO2(1+2)). By using the TiO2(1+2) as working electrode in a three-electrode photoelectrochemical cell (PEC), visible light driven water splitting has been successfully demonstrated in a phosphate buffer solution (pH 6.8), with oxygen and hydrogen bubbles evolved respectively from the working electrode and counter electrode. By applying 0.2 V external bias vs NHE, a high photocurrent density of more than 1.7 rnA.cm(-2) has been achieved. This value is higher than any PEC devices with molecular components reported in literature.
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