Isolated Cu-Sn diatomic sites for enhanced electroreduction of CO_(2)to CO

作     者：Wei Liu Haoqiang Li Pengfei Ou Jing Mao Lili Han Jun Song Jun Luo Huolin L.Xin Wei Liu;Haoqiang Li;Pengfei Ou;Jing Mao;Lili Han;Jun Song;Jun Luo;Huolin L.Xin

作者机构：State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Department of Physics and AstronomyUniversity of CaliforniaIrvineCA 92697USA Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China School of Materials Science and EngineeringTianjin Key Lab of Photoelectric Materials&DevicesTianjin University of TechnologyTianjin 300384China Department of Mining and Materials EngineeringMcGill UniversityMontreal H3A 0C5Canada Teaching and Analytical Instrumentation CenterSchool of Materials Science and EngineeringTianjin UniversityTianjin 300072China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第7期

页      面：8729-8736页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：This work was supported by the startup funding of H.L.X.The XAFS/EXAFS spectra obtained from beamline TPS 44A at National Synchrotron Radiation Research Center(NSRRC)are appreciated 

主　　题：CO_(2)reduction reaction Cu-Sn active site CO product dual-atom electrocatalyst density functional theory(DFT)calculation 

摘      要：Electrochemical CO_(2)reduction reaction(CO_(2)RR)to high-value product,CO,not only provides a key feedstock for the wellestablished Fischer-Tropsch process but also mitigates the greenhouse ***,it suffers from sluggish reaction kinetics,competitive hydrogen evolution reaction,and low ***,we report non-precious Cu-Sn diatomic sites anchored on nitrogen-doped porous carbon(CuSn/NPC)as an efficient catalyst for CO_(2)RR to *** catalyst exhibits outstanding selectivity with CO Faradaic efficiency(FE)up to 99.1%,much higher than those of individual Cu(66.2%)and Sn(51.3%)single-atom ***,high stability is confirmed by consecutive 24 h electrolysis with high selectivity from CO_(2)to *** calculations reveal an obvious activation of CO_(2)with weakened C-O bonds and distorted CO_(2)configuration upon chemisorption on the CuSn/NPC *** is also suggested CuSn/NPC is more selective for the CO_(2)RR with dominant CO production during the electrolysis,rather than the competing hydrogen evolution reaction.