State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology
Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering

【目的】捕集二氧化碳并将其资源化利用是缓解温室效应和应对能源危机的一种途径。为了在更加温和的条件下促进反应的进行,借助光催化和热催化的优势,可以采用光热催化对CO2进行还原,热能由光热材料(自热)或外部热源辅助加热产生。【方法】重点介绍了基于光热效应(自热)的光致热催化。【结果】目前,光致热催化还原CO2制含碳化合物的主要问题在于CO2的吸附、活化较为困难、产物选择性差、光热效应差等。概括了光致热催化的定义、原理、优势,重点从反应热力学、反应路径、影响光热效应的因素、催化剂改性方面对提升光致热催化还原CO2反应性能的策略进行了分析总结。详细总结了影响光热效应的因素,包括催化剂的光响应范围、光照强度、催化剂的储热能力以及金属的等离子体共振效应。【结论】在未来的研究当中,应该重点关注利用光致热的热效应提升CO2转化率以及产物选择性等方面的策略,通过调控催化剂的形貌以及反应路径来提高光热转化效率和产物选择性,进而实现光致热催化工业化应用。

【Purposes】 Carbon dioxide capture and utilization is a choice to alleviate the green- house effect and address the energy crisis. In order to promote the reaction under more mild con- ditions, photothermal catalysis is used to reduce CO with the advantages of photocatalysis and thermal catalysis. Thermal energy is generated by photothermal materials (self-heating) or ex- ternal heat sources. 【Methods】 This paper focuses on photothermal catalysis based on photother- mal effect (self-heating). 【Findings】 At present, the main problems of photothermal catalytic re- duction of CO to carbon-containing compounds lie in the difficult adsorption and activation of CO , poor product selectivity and poor photothermal effect. This review summarizes the defini- tion, principle and advantages of photothermal catalysis, focusing on the analysis and summary of strategies to improve the performance of photothermal catalytic reduction of CO from the as- pects of reaction thermodynamics, reaction path, factors affecting photothermal effect and cata- lyst modification. The factors that affect the photothermal effect are summarized in detail, inclu- ding the photoresponse range of the catalyst, the light intensity, the heat storage capacity of the catalyst and the plasmon resonance effect of the metal. 【Conclusions】 Future studies should focus on strategies to improve CO conversion and product selectivity by using the thermal effect of photoheating, and improve the photothermal conversion efficiency and product selectivity by reg- ulating the morphology and reaction path of the catalyst, so as to realize the industrial application of photothermal catalysis.

国家重点研发计划项目(2022YFE0208400);山西浙大新材料与化工研究院研发项目(2021SX-FR002);中央高校基本科研业务费专项资金资助(2022ZFJH004)

张芳源,高慧敏,荆洁颖,等.光致热催化还原CO2制含碳化合物研究进展[J].太原理工大学学报,2024,55(5):797-814.

ZHANG Fangyuan,GAO Huimin,JING Jieying,et al.Research progress in photothermal catalytic reduction of CO2 to carbon-containing compounds[J].Journal of Taiyuan University of Technology,2024,55(5):797-814.