Manipulating local CO_(2)/H_(2)O ratio in electrocatalytic CO_(2)reduction toward multi-carbon product  

作　　者：Na Qiu Wei Lu Hai-Qing Wang 

机构地区：[1]College of City and Architecture Engineering,Zaozhuang University,Zaozhuang,277160,China [2]Research Center of Geotechnical and Structural Engineering,Shandong University,Jinan,250061,China [3]Institute for Advanced Interdisciplinary Research(iAIR),College of Chemistry and Chemical Engineering,University of Jinan,Jinan,250022,China

出　　处：《Rare Metals》2025年第1期60-80,共21页稀有金属(英文版)

基　　金：supported by the National Natural Science Foundation of China(No.52309132);Shandong Provincial Natural Science Foundation(No.ZR2023ME014).

摘　　要：Electrocatalytic CO_(2)reduction reaction(CO_(2)RR)has been developed as a promising and attractive strategy to close the anthropogenic carbon cycle.Among various reduction products,multi-carbon(C2+)oxygenate and hydrocarbon compounds are desirable value-added fuels or chemicals.Extensive researches have revealed the crucial role of local CO_(2)and H_(2)O concentrations(or the adsorption of*CO and*H)close to the electrode/catalyst surface in manipulating multi-carbon generation pathways.In this mini reviews,we mainly summarized the recent progress of this field over the past five years.The modulating strategies for the hydrogen and carbon species ratio can be divided into three categories,i.e.,catalyst morphology,electrolyte composition and mass transfer.The effectiveness of the aforementioned strategies in promoting multi-carbon product selectivity was discussed in detail from the perspectives of tuning the local CO_(2)and H_(2)O concentrations and the subsequent thermodynamic-and kinetic-controlled*CO and*H ratios.Finally,the critical challenges remaining in balancing the ratio of CO_(2)and H_(2)O as well as potential upgrading directions for future research are addressed.

关 键 词：CO_(2)reduction Electrocatalysis Multi-carbon product CO_(2)/H_(2)O ratio Local environment 

分 类 号：O64[理学—物理化学]