摘要
Energy-intensive chemical manufacturing is one of the largest contributors to global CO_(2) emissions.With the vigorous development of renewable energy,the electrocatalytic CO_(2) reduction reaction(CO_(2)RR)has become a sustainable technology for recycling.To broaden the variety of products,the N-integrated electrocatalytic CO_(2)RR(Nsingle bondCO_(2)RR)constructs a new element conversion pathway by introducing nitrogen upon CO_(2)RR.However,the product selectivity of Nsingle bondCO_(2)RR is still very low,which seriously restricts its practical application.In recent years,an increasing amount of research has focused on upgrading the performance of Nsingle bondCO_(2)RR.Accurate understanding of its catalytic mechanism,that is,obtaining online information about reaction intermediates by in situ characterization techniques,can guide the optimization of electrocatalytic systems.Currently,this method makes great contributions in the field of electrocatalysis,including Nsingle bondCO_(2)RR mechanism research.This review briefly summarizes the research status and existing reaction intermediates of Nsingle bondCO_(2)RR and explains how the investigation of intermediates can improve electrocatalytic selectivity.Meanwhile,the application of in situ characterization techniques for analyzing different types of intermediates in Nsingle bondCO_(2)RR and its related fields are emphasized in this review.The significant value of these technologies in revealing electrocatalytic mechanisms can help improve electrocatalytic selectivity,allowing for future optimization of Nsingle bondCO_(2)RR.
基金
supported by grants from the National Natural Science Foundation of China(22276138,22074104)
the National Program for Support of Top-Notch Young Professionals,the Fundamental Research Funds for the Central Universities
the Science&Technology Commission of Shanghai Municipality(22230712800).
