The electrochemical reduction of CO_(2)(eCO_(2)R)under ambient conditions is crucial for reducing carbon emissions and achieving carbon neutrality.Despite progress with alkaline and neutral electrolytes,their efficien...The electrochemical reduction of CO_(2)(eCO_(2)R)under ambient conditions is crucial for reducing carbon emissions and achieving carbon neutrality.Despite progress with alkaline and neutral electrolytes,their efficiency is limited by(bi)carbonates formation.Acidic media have emerged as a solution,addressing the(bi)carbonates challenge but introducing the issue of the hydrogen evolu-tion reaction(HER),which reduces CO_(2) conversion efficiency in acidic environments.This review focuses on enhancing the selectivity of acidic CO_(2) electrolysis.It commences with an overview of the latest advancements in acidic CO_(2) electrolysis,focusing on product selectivity and electrocatalytic activity enhancements.It then delves into the critical factors shaping selectivity in acidic CO_(2) electrolysis,with a special emphasis on the influence of cations and catalyst design.Finally,the research challenges and personal perspectives of acidic CO_(2) electrolysis are suggested.展开更多
Electrocatalysis of CO_(2)toward multicarbon(C_(2+))products have multifaceted applications in the energy and chemical industries,offers an attractive route to mitigate carbon emissions and abate the depletion of foss...Electrocatalysis of CO_(2)toward multicarbon(C_(2+))products have multifaceted applications in the energy and chemical industries,offers an attractive route to mitigate carbon emissions and abate the depletion of fossil fuels.However,the productivity of CO_(2)-to-C_(2+)products suffers from a low selectivity and reaction rate owing to the difficulty in C-C coupling and the multiple electronproton transfer steps.Recently,numerous tandem catalysts have been developed to improve the selectivity and formation rate of CO_(2)-to-C_(2+)products via coupled multiple reaction steps,exhibiting high industrial practicability.This review summarized recent progresses in the formation of C_(2+)products from CO_(2)electrolysis on tandem catalysts.In this review,we highlight the cooperative regulation strategy of tandem catalysts formed by introducing different types of new components and reveal the relationships between*CO intermediate mass transport and the selectivity of C_(2+)products.Moreover,theoretical insight into the tandem catalytic mechanisms underlying the enhanced C_(2+)selectivity is also provided.Finally,the remaining challenges and opportunities for the electrocatalytic CO_(2)toward C_(2+)products are discussed.展开更多
The electrochemical carbon dioxide reduction(eCO_(2)RR)is an effec-tive way to reduce the carbon dioxide produced by industrial revolution through the conversion of CO_(2)to renewable fuels and value-added chemicals b...The electrochemical carbon dioxide reduction(eCO_(2)RR)is an effec-tive way to reduce the carbon dioxide produced by industrial revolution through the conversion of CO_(2)to renewable fuels and value-added chemicals by renewable electricity[1,2].However,the selectivity of single products in eCO_(2)RR is significantly reduced due to the inevitable hydrogen evolution reaction(HER)and insufficient exposure of the active site[3-5].展开更多
文摘The electrochemical reduction of CO_(2)(eCO_(2)R)under ambient conditions is crucial for reducing carbon emissions and achieving carbon neutrality.Despite progress with alkaline and neutral electrolytes,their efficiency is limited by(bi)carbonates formation.Acidic media have emerged as a solution,addressing the(bi)carbonates challenge but introducing the issue of the hydrogen evolu-tion reaction(HER),which reduces CO_(2) conversion efficiency in acidic environments.This review focuses on enhancing the selectivity of acidic CO_(2) electrolysis.It commences with an overview of the latest advancements in acidic CO_(2) electrolysis,focusing on product selectivity and electrocatalytic activity enhancements.It then delves into the critical factors shaping selectivity in acidic CO_(2) electrolysis,with a special emphasis on the influence of cations and catalyst design.Finally,the research challenges and personal perspectives of acidic CO_(2) electrolysis are suggested.
基金This work was supported by the Fundamental Research Funds for the Central Universities(No.2232021A-02)the National Natural Science Foundation of China(Nos.52122312 and 22209024)+1 种基金Shanghai Pujiang Program(No.22PJ1400200)State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University.
文摘Electrocatalysis of CO_(2)toward multicarbon(C_(2+))products have multifaceted applications in the energy and chemical industries,offers an attractive route to mitigate carbon emissions and abate the depletion of fossil fuels.However,the productivity of CO_(2)-to-C_(2+)products suffers from a low selectivity and reaction rate owing to the difficulty in C-C coupling and the multiple electronproton transfer steps.Recently,numerous tandem catalysts have been developed to improve the selectivity and formation rate of CO_(2)-to-C_(2+)products via coupled multiple reaction steps,exhibiting high industrial practicability.This review summarized recent progresses in the formation of C_(2+)products from CO_(2)electrolysis on tandem catalysts.In this review,we highlight the cooperative regulation strategy of tandem catalysts formed by introducing different types of new components and reveal the relationships between*CO intermediate mass transport and the selectivity of C_(2+)products.Moreover,theoretical insight into the tandem catalytic mechanisms underlying the enhanced C_(2+)selectivity is also provided.Finally,the remaining challenges and opportunities for the electrocatalytic CO_(2)toward C_(2+)products are discussed.
基金supported by the Tongcheng R&D Foundation(No.CPCIF-RA-0102)National Natural Science Foundation of China(Nos.22209024 and 52122312).
文摘The electrochemical carbon dioxide reduction(eCO_(2)RR)is an effec-tive way to reduce the carbon dioxide produced by industrial revolution through the conversion of CO_(2)to renewable fuels and value-added chemicals by renewable electricity[1,2].However,the selectivity of single products in eCO_(2)RR is significantly reduced due to the inevitable hydrogen evolution reaction(HER)and insufficient exposure of the active site[3-5].
