Atomic Bridging of Sn Single Atom with Nitrogen and Oxygen Atoms for the Selective Electrocatalytic Reduction of CO 2

Abstract

Open AccessCCS ChemistryRESEARCH ARTICLES9 Dec 2022Atomic bridging of Sn single atom with nitrogen and oxygen atoms for selectively electrocatalytic reduction of CO2 Bari Wulan, Xueying Cao, Dongxing Tan, Xinxin Shu, Jizhen Ma, Shaoqi Hou and Jintao Zhang Bari Wulan Google Scholar More articles by this author , Xueying Cao Google Scholar More articles by this author , Dongxing Tan Google Scholar More articles by this author , Xinxin Shu Google Scholar More articles by this author , Jizhen Ma Google Scholar More articles by this author , Shaoqi Hou Google Scholar More articles by this author and Jintao Zhang Google Scholar More articles by this author https://doi.org/10.31635/ccschem.022.202202464 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail The atomic coordination structure of single atom catalysts is crucial to modulate electrocatalytic reduction of CO2 into desirable products. However, there remains limited insight into their roles and catalytic mechanisms. In comparison with commonly proposed metal-N4 moieties, herein the atomic bridging structure of nitrogen-tin-oxygen (N2-Sn-O2) confined in porous carbon fibers is firstly presented for selective reduction of CO2. With the detailed identification of such unique structure, the in-situ experimental results and theory calculations demonstrate that the bridging structure with reactive oxygen species enable the favorable surface electronic status to form adsorbed intermediate, *COOH for the selective CO generation. Typically, the electrocatalytst displayed the high Faradaic efficiency for reducing CO2 into CO, but formate production on the traditional Sn-based catalysts. Additionally, the solar-driven CO2-H2O system displays the desirable solar-to-CO conversion efficiency of 12.9%. This work provides fundamental guidance for the rational regulation of atomic coordination structure to improve the production selectivity. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentVolume 0Issue jaPage: 1-24Supporting Information Copyright & Permissions© 2022 Chinese Chemical Society Downloaded 57 times PDF downloadLoading ...