应用化学2024，Vol.41Issue(12)：1751-1759,9.DOI:10.19894/j.issn.1000-0518.240135
CuxIny合金协同多酸电催化还原CO2制备宽比例合成气
Electrocatalytic Reduction of CO2 to Widely Proportionally Syngas Enabled by CuxIny Alloy Synergistic Polyoxometalates
摘要
Abstract
Utilizing non grid connected electricity for CO2 conversion and reuse is one of the promising approaches in the context of "dual carbon". In order to achieve a wide and adjustable proportion of syngas via CO2 reduction,synergistic catalytic system of CuxIny alloy and PV2MoW9 were designed and constructed. Among alloy series of CuxIny,Cu1In3 exhibits the optimal CO2 electrocatalytic activity,achieving a high CO Faraday efficiency of 95.3％ under an applied voltage of-0.6 V and a stable duration of up to 53 h. Further experimental analysis and theoretical studies indicated that copper-indium alloy weakens the binding between the intermediate *CO and the catalyst,accelerates the process of *CO desorption into CO,and thus improves the selectivity of CO. In this system,the CO2 reduction process is as follows:CO2 → *CO−2 → *COOH→ *CO →CO.关键词
电催化二氧化碳还原/铜铟合金/合成气/多金属氧酸盐Key words
Electrocatalytic CO2 reduction reaction/Copper-indium alloy/Synthetic gas/Polyoxometalates分类
化学化工引用本文复制引用
邰月华,孙文聪,何林奎,周丽,李淑淼,田文雪,李春香..CuxIny合金协同多酸电催化还原CO2制备宽比例合成气[J].应用化学,2024,41(12):1751-1759,9.基金项目
黑龙江省教育科学规划课题(No.GJB1423127)资助Supported by the Education Science Planning Project of Heilongjiang Province(No.GJB1423127) （No.GJB1423127）
