碳材料在电化学催化还原CO2领域的应用

Application of Carbon Materials in CO2 Electoreduction Reaction

CO 2电化学催化还原反应(CERR)是一种潜在的CO 2转化方法,可以将CO 2还原为高附加值的化工产品和化学燃料,实现温室气体的高效清洁利用,对解决能源危机与环境问题均具有十分重要的意义。CERR中催化剂的性质是决定和控制反应活性、选择性和稳定性的主要因素。与金属催化剂相比,非金属催化剂(碳材料)由于其具有组成可控、能量效率高和稳定性优异等特点,而备受关注。笔者总结了近几年CERR杂原子掺杂碳基催化剂的研究进展,讨论了杂原子掺杂碳材料的催化性能,及其在CERR中的催化活性中心和相关机理,总结了杂原子掺杂碳基催化剂的发展方向。

CO 2 electrochemical reduction reaction(CERR)is a potential CO 2 conversion method since it can transfer CO 2 to more useful and high value-added fuels and chemicals.It is of great significance to solve the energy crisis and environmental problems.Properties of the cathode material in CERR is the determining factor to control the activity,selectivity and stability of the reaction.Compared with metal cathode catalysts which have been extensively studied,carbon materials are emerging as highly promising alternatives due to the controllable composition,favorable energy efficiency and excellent stability.Moreover,heteroatom doping can further tune the electroactivity of nanostructured carbon cathode in CERR.This paper summarizes the recent developments of the heteroatom-doped carbon cathode catalysts for CERR.Not only electrochemical reduction performance of the doped carbon materials but also the active center and related mechanisms in CERR are discussed in detail.Finally,the development direction of heteroatom-doped carbon catalysts is also summarized.