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Significance Electrochemical CO2 reduction to formate provides an approach to mitigate global warming and simultaneously relieve the growing energy crisis. However, simultaneously achieving desirable catalytic activity and selectivity is greatly… Click to show full abstract
Significance Electrochemical CO2 reduction to formate provides an approach to mitigate global warming and simultaneously relieve the growing energy crisis. However, simultaneously achieving desirable catalytic activity and selectivity is greatly limited by the inertness of CO2 and the sluggish electron transfer kinetics. We report a catalyst with the structure of SnO2 quantum dots coupled with ultrathin Ti3C2Tx MXene nanosheets, which not only can expose more active sites to facilitate the electrical transport but also can construct high-active Sn sites by chemical coupling, offering great opportunities to improve catalytic properties of the CO2 reduction to formate. This work comprehensively investigates the chemical coupling of the two components that significantly improves their electrocatalytic performances for CO2 conversion into formate and Zn–CO2 battery.
Journal Title: Proceedings of the National Academy of Sciences of the United States of America
Year Published: 2022
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