【作者】 米程； 傅文甫；

【Author】 Cheng Mi;Wenfu Fu;College of Chemistry and Chemical Engineering, Yunnan Normal University;Technical Institute of Physics and Chemistry, Chinese Academy of Sciences;

【机构】 云南师范大学化学化工学院； 中国科学院理化技术研究所；

【摘要】 随着化石能源的过度开采和使用,产生作为温室气体之一的CO₂大量排放到自然界,生态系统的平衡受到影响,并导致气候变暖日益加剧。利用太阳光催化将CO₂转化成CO和小分子有机化合物长期以来一直备受关注。我国地域辽阔,有丰富的稀土矿藏资源,我们将稀土金属配合物用于催化CO₂还原反应,构建了可见光催化还原CO₂为CO的均相催化体系。通过系列优化实验研究,在光催化还原产生CO和H₂的竞争反应中,提高了产物CO选择性。在此基础上,基于稀土金属配合物的无机-有机复合材料^[1,2]光催化CO₂还原反应的研究结果也将被呈现。更多还原

【Abstract】 The heavy reliance on fossil fuels for the production of energy leads to increasing emissions of carbon dioxide into the atmosphere, which is considered to be an important factor for anthropogenic climate changes, and changes the balance of ecosystem. Photocatalytic reduction of CO₂ to CO and hydrocarbons has been extensively studied as a potential means to address the problems of global warming and the depletion of fossil fuels. Here, we used tombarthite metal complexes as catalysts to establish a homogeneous catalytic system with high selectivity for catalytic reduction of CO₂ to CO under visible-light irradiation, and effectively reduce the accompanied H₂ generating rate through optimized experimental conditions. On the base of investigated homogeneous system, the study progress of functionalized rare-earth metal complex used as catalyst covalently linked to semiconductor oxide to form composited catalysts as photocatalytic reduction of CO₂ will also be presented.更多还原