The greenhouse gas CO_(2)emitted in the process of fossil fuels utilization can be decontaminated through carbon capture,utilization and storage technology(CCUS),which is an important pathway to close the carbon cycle...The greenhouse gas CO_(2)emitted in the process of fossil fuels utilization can be decontaminated through carbon capture,utilization and storage technology(CCUS),which is an important pathway to close the carbon cycle and achieve carbon neutrality[1,2].In recent years,catalyzing CO_(2)reduction into high value-added C_(2+) products with high selectivity by electrochemical method has become a promising research area.Compared to C1products(such as CO,methane,formic acid and methanol),C_(2+)products(such as ethylene,ethanol,acetic acid and n-propanol)have higher energy density and economic value.At present,the main C1products of CO_(2)reduction reaction(CO_(2)RR),such as CO and formic acid,can achieve more than 90%selectivity and meet the industrial current density requirements of 300 mA cm^(-2)[3].However,the single selectivity and current density of C_(2+)products are still facing great challenges,mainly due to the complex reaction route,slow kinetic process,low catalyst activity and lack of exploration of mechanism,which make it difficult to meet the needs of large-scale production.展开更多
CO_(2)捕集、利用与封存(carbon capture,utilization and storage,CCUS)是实现碳中和战略目标和可持续能源发展的重要技术手段[1~3].其中,电催化CO_(2)还原是高效、温和、绿色、可控的CO_(2)资源化利用方式,能够通过可再生电力驱动电...CO_(2)捕集、利用与封存(carbon capture,utilization and storage,CCUS)是实现碳中和战略目标和可持续能源发展的重要技术手段[1~3].其中,电催化CO_(2)还原是高效、温和、绿色、可控的CO_(2)资源化利用方式,能够通过可再生电力驱动电解系统将CO_(2)转化为高附加值的化学品和燃料,是当前研究热点领域之一[4~6].然而,CO_(2)电催化还原面临着一些关键挑战.首先,CO_(2)还原具有高能垒和低反应活性.展开更多
基金supported by Beijing Natural Science Foundation(J210020)Hebei Natural Science Foundation(B2021208074)+2 种基金the National Natural Science Foundation of China(22002172,22003070,and 22121002)the National Key Research and Development Program of China(2020YFA0710203)Photon Science Center for Carbon Neutrality。
文摘The greenhouse gas CO_(2)emitted in the process of fossil fuels utilization can be decontaminated through carbon capture,utilization and storage technology(CCUS),which is an important pathway to close the carbon cycle and achieve carbon neutrality[1,2].In recent years,catalyzing CO_(2)reduction into high value-added C_(2+) products with high selectivity by electrochemical method has become a promising research area.Compared to C1products(such as CO,methane,formic acid and methanol),C_(2+)products(such as ethylene,ethanol,acetic acid and n-propanol)have higher energy density and economic value.At present,the main C1products of CO_(2)reduction reaction(CO_(2)RR),such as CO and formic acid,can achieve more than 90%selectivity and meet the industrial current density requirements of 300 mA cm^(-2)[3].However,the single selectivity and current density of C_(2+)products are still facing great challenges,mainly due to the complex reaction route,slow kinetic process,low catalyst activity and lack of exploration of mechanism,which make it difficult to meet the needs of large-scale production.
基金supported by the National Natural Science Foundation of China(22273108,22073104,22293015,22033009,21890761,22121002,and 12275300)Beijing Natural Science Foundation(2222043)+1 种基金Chinese Academy of Sciences(CAS)Project for Young Scientists in Basic Research(YSBR-050)the Innovation Program of the Institute of High Energy Physics,CAS(2023000034)。
文摘CO_(2)捕集、利用与封存(carbon capture,utilization and storage,CCUS)是实现碳中和战略目标和可持续能源发展的重要技术手段[1~3].其中,电催化CO_(2)还原是高效、温和、绿色、可控的CO_(2)资源化利用方式,能够通过可再生电力驱动电解系统将CO_(2)转化为高附加值的化学品和燃料,是当前研究热点领域之一[4~6].然而,CO_(2)电催化还原面临着一些关键挑战.首先,CO_(2)还原具有高能垒和低反应活性.
