Selective Generation of Electroreduction C ₁ –C ₂ Products Through Self-Regulation of Catalytically Active Cu Sites on the Same Coordination Cluster Catalyst

Open AccessCCS ChemistryRESEARCH ARTICLES14 Dec 2022Selective Generation of Electroreduction C1-C2 Products through Self-Regulation of Catalytically Active Cu Sites on The Same Coordination Cluster Catalyst Rui Wang, Jiang Liu, Long-Zhang Dong, Jie Zhou, Qing Huang, Yi-Rong Wang, Jing-Wen Shi and Ya-Qian Lan Rui Wang Google Scholar More articles by this author , Jiang Liu Google Scholar More articles by this author , Long-Zhang Dong Google Scholar More articles by this author , Jie Zhou Google Scholar More articles by this author , Qing Huang Google Scholar More articles by this author , Yi-Rong Wang Google Scholar More articles by this author , Jing-Wen Shi Google Scholar More articles by this author and Ya-Qian Lan Google Scholar More articles by this author https://doi.org/10.31635/ccschem.022.202202316 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Well-defined crystalline coordination compound catalysts have showcased distinct advantages in the regulation of the species and selectivity of electrocatalytic CO2 reduction products. However, the systematic study of the crystal-facet effect of crystalline coordination compound on the performance of electrocatalytic CO2 reduction has not yet been reported. Herein, a stable hexanuclear copper cluster (Cu6) catalyst model system is designed and synthesized. By effectively regulating the growth size (micro-nano size) and morphology of Cu6 single crystal, Cu6(P) with the main (100) facet, Cu6(H) with the main (100) and (001) facet, and Cu6(S) with the main (001) facet are obtained. From Cu6(P)via Cu6(H) to Cu6(S), there is a shift from the predominantly exposed the (100) facet (involving two nonadjacent active Cu sites) to (001) facet ((involving three adjacent active Cu sites), which directly affects the adsorption direction of the key *CO intermediate and the potential of C-C coupling, thus enabling effective regulation of the selectivity of C1 (CO and CH4) and C2 (C2H4) reduction products. This work provides an essential molecular model system and a novel design perspective for the systematic study of the crystal-facet effect of coordination compounds on the species and selectivity of CO2RR products. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2022 Chinese Chemical Society Downloaded 77 times PDF downloadLoading ...