铜基硫族化合物电催化二氧化碳还原制甲酸盐的研究进展

因电催化二氧化碳还原反应（CO₂ reduction reaction,CO₂RR）助于降低大气二氧化碳浓度缓解环境问题,还可以生产高附加值化学品,引起了广泛关注。甲酸盐作为二氧化碳电还原的重要产物之一,在化工、燃料电池等领域广泛应用。铜基硫族化合物（Cu_xS）由于价格便宜、催化性能优异等优点有着广阔的应用前景,基于此研究者们在纳米结构调控、电解液优化和反应气组分控制等方面展开了大量研究以提升其在电催化CO₂RR中的催化活性和甲酸盐产物选择性。主要从催化剂结构设计、催化影响要素、催化反应机理等多角度综述了近期Cu_xS在电催化CO₂RR领域的研究进展,提出了Cu_xS在CO₂RR领域中主要面临的挑战;展望了Cu_xS族催化剂作为高活性、高稳定性二氧化碳电还原催化剂的发展前景。

Recent progress on Cu-based chalcogenides for electrocatalytic carbon dioxide reduction to formate

Electrocatalytic caybon dioxide reduction reaction（CO₂RR） has attracted widespread attention for its help in reducing atmospheric CO₂ concentration to alleviate environmental problems and producing high value-added chemicals.As one of the most important products of CO₂ electroreduction,formate is widely used in chemical industry,fuel cell and other fields.Cu-based chalcogenides（Cu_xS） have broad application prospects due to their low price and excellent catalytic performance.Based on this,researchers have devoted much effort to nanostructure regulation,electrolytes optimization and feed composition control to promote the catalytic activities and formate selectivity of Cu-based chalcogenides toward electrocatalytic CO₂RR.Recent advances in structural design of catalysts,influential factors and catalytic mechanism for Cu_xS in CO₂ electroreduction were reviewed.And the main challenges that Cu_xS faces in the CO₂RR field were also pointed out.The development prospect of Cu_xS catalysts as electrocatalysts for CO₂ reduction with high activity and stability was prospected.