光催化还原二氧化碳制备太阳燃料研究进展及挑战

Recent progress and challenge in research of photocatalytic reduction of CO_2 to solar fuels

光催化还原二氧化碳制备太阳燃料是太阳能转化与利用的主要发展方向之一,其核心是构建高效的光催化反应体系.本文介绍光催化还原二氧化碳反应的基本原理与改善能量转化效率的主要途径,综述了微结构设计、晶体工程、电子结构设计等改善光催化材料催化活性的方法,探讨光催化反应中的基本物理化学问题以及高效光催化材料开发的主要策略.分析了影响能量转换效率的关键因素及开展光催化反应热力学与动力学研究的重要性,评述了几种新型光化学还原CO_2的反应,展望了该领域的未来发展方向.

Photocatalytic reduction of carbon dioxide is one of the important development directions for solar energy conversion and utilization.A main task is to build an efficient photocatalytic reaction system.This review article introduces the recent research state of photocatalytic reduction of CO2,including a summary on basic mechanism for photocatalysis and the methods for improving the energy conversion efficiency,the method of microstructure design,crystal engineering,electronic structure design to improve the catalytic activity of photocatalytic materials,the basic physical and chemical problems during photocatalytic reaction and the main way of developing efficient photocatalytic materials.We have point out the key factors affecting the energy conversion efficiency and the significance on the study of thermodynamics and kinetics of photocatalytic reaction.The new photochemical reduction pathway of CO_2 and the future development direction of this field were viewed.