光热协同效应在催化反应中的应用研究进展

近几年,随着催化研究的逐渐深入,将两种或多种手段耦合,能够明显地改善催化性能,其中光热协同催化是当前新型催化技术研究的焦点.我们介绍了光热协同催化在能源合成领域的应用,尤其在光热催化CO_2转化、污染物降解、制氢和费托合成等反应.研究结果表明,两者的有效结合可以超越单独热催化或光催化所能达到的效果,在某些反应中能够明显提高产物的收率,改善目标产物的选择性以及降低反应的温度.最后还展望了光热协同催化发展的前景,以及目前仍然面临反应机理尚不明确和合适催化剂的筛选等问题.

Application of Photo-thermal Synergistic Effect in Catalytic Reactions

In recent years, with the deepening of catalysis research, the combination of two or more methods can significantly improve the catalytic performance. And the photothermal synergistic catalytic is the current research focus of new catalytic technology. This paper mainly reviews the application in the field of energy synthesis under cooperative catalysis condition, including photothermocatalytic CO₂ conversion, degradation of pollutants, hydrogen production, and Fischer-Tropsch synthesis, etc. The results show that the effective combination of the two methods can surpass the effect of thermal catalysis and photo catalysis alone. In some reactions, the yield of the product can be increased obviously, the selectivity of the product can be improved and the reaction temperature can be reduced. Finally, the development prospect of photothermocatalytic is prospected. At present, there are still some problems, such as the unclear reaction mechanism and the selection of suitable catalysts.