Photocatalytic Reduction of CO2 in the presence of H2 over a Ga2O3 photocatalyst
Introduction Chemical fixation is one of the most attractive methods for abatement of CO2. Using a photocatalyst enables the reduction of CO2 to proceed at room temperature and ambient pressure. In our previous study, we reported the photocatalytic reduction of CO2 to CO in the presence of H2 over Rh/TiO2, ZrO2, and MgO. It is important that the adsorption of CO2 on the surface converts the stable linear form of CO2, which is the form present in the gas phase, into a reactive species that can easily be reduced. Recently, we found that Ga2O3 also showed photocatalytic activity for the photocatalytic reduction of CO2 in the presence of H2 as a reductant1. In this study, we investigated the conformations and reactivities of the absorbed CO2 and H2 species on a Ga2O3 surface by FT-IR spectroscopy to determine the reaction mechanism for photocatalytic reduction of CO2 on Ga2O3.
Kentaro Teramura Hideo Tsuneoka Tetsuya Shishido Tsunehiro Tanaka
Kyoto University Pioneering Research Unit for Next Generation, Kyoto University, Kyoto 615-8510, Jap Department of Molecular Engineering, Kyoto University, Kyoto 615-8510, Japan
国际会议
6th International Conference on Environmental Catalysis(第六届国际环境催化大会 ICEC 2010)
北京
英文
140-140
2010-09-12（万方平台首次上网日期，不代表论文的发表时间）