物理化学学报2023，Vol.39Issue(11)：11-37,27.DOI:10.3866/PKU.WHXB202212042
金属氧化物半导体用于光热催化CO2加氢反应:最新进展和展望
Metal Oxide Semiconductors for Photothermal Catalytic CO2 Hydrogenation Reactions:Recent Progress and Perspectives
摘要
Abstract
Owing to the accelerated growth of the human economy and society,the increasing concentration of CO2 in the atmosphere has caused serious ecological and environmental problems because of the greenhouse effect.In response to the challenges posed by climate change,China has made a significant commitment to"peak carbon emissions by 2030 and achieve carbon neutrality by 2060".Ideally,converting CO2 into carbon-based energy and chemicals is supposed to be the best strategy of both worlds,mitigating the greenhouse effect while also addressing the shortage of energy supply.Among the proposed concepts for the above strategy,the scheme of reducing CO2 using renewable green H2 to produce chemicals is preferred,because it can stimulate the potential of clean energy while also reducing CO2 emission.To accelerate this reduction process,many catalytic reactions,including photocatalysis,have been designed and investigated.Owing to its high catalytic efficiency and extensive use of solar energy,photothermal catalytic CO2 hydrogenation in photocatalysis is desirable for increasing sun-to-fuel efficiency.There are two main interpretations of photothermal catalytic hydrogenation:(1)only sunlight is used as the energy source to drive the catalyst,which generates heat to promote CO2 conversion.In this case,the reaction still proceeds in the form of thermocatalysis,whereas photocatalysis has a limited effect.(2)Solar and heat energy are coupled to participate in the catalytic reaction,which has a synergistic effect.Therefore,according to the catalytic mode,the rational design and successful synthesis of photothermal catalysts are very important.Metal oxide semiconductors,owing to their unique energy band structure and chemical properties,high stability,and environmental friendliness,are widely used in the research of photothermal catalytic hydrogenation reactions.This paper reviews the research progress on metal oxide materials used in the CO2 hydrogenation reaction by photothermal catalysis.In particular,the most significant results of research in the last five years have been performed mainly from three different catalyst modulation strategies,such as supporting catalysts,applying microstructure engineering,and defect engineering.The mechanisms of these modulation strategies are summarized and presented for further understanding.In addition,this study introduces different types of photothermal hydrogenation reactors,accompanied by the effects of some key parameters on the reactions.Finally,design strategies for metal oxide catalysts are suggested,and an outlook of photothermal abatement technology is presented.关键词
CO2还原/催化加氢/光热协同/金属氧化物/调控策略Key words
CO2 reduction/Catalytic hydrogenation/Photothermal synergy/Metal oxide/Modulation strategy分类
化学引用本文复制引用
万宇彤,方帆,孙瑞雪,张杰,常焜..金属氧化物半导体用于光热催化CO2加氢反应:最新进展和展望[J].物理化学学报,2023,39(11):11-37,27.基金项目
国家自然科学基金(51888103),江苏省自然科学基金(BK20210308),中国博士后科学基金(2021M701695),中央高校基本科研业务费专项资金(NE2019103),江苏省研究生科研实践创新计划(SJCX21_0097)资助项目 The project was supported by the National Natural Science Foundation of China(51888103),the Natural Science Foundation of Jiangsu Province,China(BK20210308),the Postdoctoral Science Foundation of China(2021M701695),the Fundamental Research Funds for the Central Universities,China(NE2019103)and the Postgraduate Research&Practice Innovation Program of Jiangsu Province,China(SJCX21_0097). （51888103）
