超薄材料电催化CO_(2)还原合成液体燃料EI北大核心CSCD

电催化CO_(2)还原反应(CO_(2)RR)不仅可以减轻过量CO_(2)造成的负面影响,而且生成的含碳燃料有利于缓解能源短缺。但是,CO_(2)RR路径较为复杂,存在着选择性低、电流密度低和稳定性差等问题,亟需开发高效廉价的催化剂来推进其发展。超薄材料具有大的比表面积、充分暴露的活性位点、加快的动力学传质和可调的电子结构等优势,有望突破CO_(2)RR的研究瓶颈,因此备受关注。本文总结了近4年来不同超薄催化剂的合成及其在电催化CO_(2)还原产液体燃料(甲酸、甲醇、乙酸)中的应用,探讨了超薄材料相较于块体材料的优势及其对催化活性、选择性以及反应路径的影响,并针对未来的发展趋势提出一些建议,包括超薄催化剂的合成方法学、作为载体的潜力、机理分析和机器学习。

Ultra-thin materials for electrocatalytic CO2 reduction to prepare liquid fuels

The electrocatalytic CO₂ reduction reaction(CO₂RR)can not only alleviate the negative effects caused by excessive CO₂,but also produce the carbon-containing fuels to alleviate energy shortages.However,the reactive paths of CO₂RR are relatively complicated,and the problems such as low selectivity,low current density and poor stability exist.It is urgent to develop efficient and inexpensive catalysts to promote its development.Ultra-thin materials have the advantages of large specific surface area,fully exposed active sites,accelerated kinetic mass transfer,and adjustable electronic structure.They are expected to break the bottleneck of CO₂RR,thus receiving widespread attention.Here,the synthesis and application of ultra-thin materials in the past four years in electrocatalytic CO₂RR to produce liquid fuels(formic acid,methanol,acetic acid)were briefly summarized.The advantages of ultra-thin materials over bulk materials and their influence on catalytic activity,selectivity and reaction paths were discussed.Also,some suggestions for future development trends,including the synthesis methodology of ultra-thin materials,their potential as supports,mechanism analysis and machine learning were put forward.