CuBi@Cu⁃MOF复合材料电催化CO_(2)还原至HCOOH的性能  

CuBi@Cu⁃MOF composite catalysts for electrocatalytic CO_(2)reduction to HCOOH

作　　者：王芳芳 陈佳琪 孙为银 WANG Fangfang;CHEN Jiaqi;SUN Weiyin(State Key Laboratory of Coordination Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China)

机构地区：[1]南京大学化学化工学院,配位化学国家重点实验室,南京210023

出　　处：《无机化学学报》2025年第1期97-104,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.22231006,22171131)资助。

摘　　要：通过直接搅拌法制备了2种CuBi双钙钛矿材料修饰的Cu金属有机骨架(CuBi@Cu‑MOF),并系统评估了2种材料作为电催化剂在碱性体系中对CO_(2)还原反应产物的选择性和法拉第效率(FE)。结果表明,表面改性后的CuBi@Cu‑MOF催化剂表现出明显提升的HCOOH选择性,其对应的最高FE可达56%,优于Cu‑MOF催化剂本身的FE(15%)。研究结果显示,表面改性降低了电荷转移阻力,增加了活性位点数量,从而提高了电催化活性。Two kinds of CuBi double perovskite modified Cu‑metal‑organic framework(CuBi@Cu‑MOF)were prepared using a simple stirring method.The product selectivity and Faraday efficiency(FE)of the two composite materials as electrocatalysts for CO_(2)reduction were systematically evaluated in an alkaline system.The results demonstrated that CuBi@Cu‑MOFs exhibited significantly enhanced HCOOH selectivity,the maximum FE of CuBi‑MOF reached 56%which was better than the FE of Cu MOF catalyst itself(15%).The surface modification reduces the charge transfer resistance and increases the active sites,thus improving the electrocatalytic performance.

关 键 词：Cu金属有机骨架 CuBi双钙钛矿 电催化 CO_(2)还原 

分 类 号：O614.121[理学—无机化学] O614.532[理学—化学]