A Long-Lived Mononuclear Cyclopentadienyl Ruthenium Complex Grafted onto Anatase TiO2 for Efficient CO2 Photoreduction

详细信息    查看全文

• 作者：Haowei Huang ; Jinjin Lin ; Dr. Gangbei Zhu ; Prof. Yuxiang Weng ; Prof. Xuxu Wang ; Prof. Xianzhi Fu and Prof. Jinlin Long
• 刊名：Angewandte Chemie
• 出版年：2016
• 出版时间：July 11, 2016
• 年：2016
• 卷：128
• 期：29
• 页码：8454-8458
• 全文大小：2516K
• ISSN：1521-3757

文摘

This work shows a novel artificial donor–catalyst–acceptor triad photosystem based on a mononuclear C₅H₅-RuH complex oxo-bridged TiO₂ hybrid for efficient CO₂ photoreduction. An impressive quantum efficiency of 0.56 % for CH₄ under visible-light irradiation was achieved over the triad photocatalyst, in which TiO₂ and C₅H₅-RuH serve as the electron collector and CO₂-reduction site and the photon-harvester and water-oxidation site, respectively. The fast electron injection from the excited Ru²⁺ cation to TiO₂ in ca. 0.5 ps and the slow backward charge recombination in half-life of ca. 9.8 μs result in a long-lived D⁺–C–A⁻ charge-separated state responsible for the solar-fuel production.