单原子Ni、N共掺杂碳材料基催化剂电还原CO2制CO研究进展OA北大核心CSTPCD

Study of single-atom Ni and N co-doped carbon-material based catalysts(Ni-N-C)for CO2 electrochemical reduction(CO2ER)to CO began in the past decade.It has received a lot of attentions because it possessed ultra-high CO selectivity even under high current density and high overpotential.This article reviewed recent advances in Ni-N-C for CO2ER to CO,including nitrogen doped carbon-material based catalysts and Ni-N-C for CO2ER to CO.The catalytic activities of different forms of N in carbon-material based catalysts were summarized,and so far,the exact role of N in carbon-material based catalysts for CO2ER was controversial.Moreover,the catalytic performance,catalytic mechanism and catalytic performance modification for Ni-N-C were also summarized.The effects of N atoms and defect sites coordinated with Ni on catalytic activity,and the advantages and disadvantages of various carbon-carriers were analyzed.Although research on CO2ER to CO using Ni-N-C has made certain progress,such as the current density reaching industrial grade requirements,some key issues still needed to be solved to achieve its large-scale industrial applications,such as developing directional preparation technologies for high activity and high stability Ni-N-C and developing advanced carbon-material carriers,which were simple and mild preparation,low cost,corrosion-resistant high-temperature resistant.