Nano-crumples induced Sn-Bi bimetallic interface pattern with moderate electron bank for highly efficient CO2 electroreduction

Abstract CO 2 electroreduction reaction offers an attractive approach to global carbon neutrality. Industrial CO 2 electrolysis towards formate requires stepped-up current densities, which is limited by the difficulty of precisely reconciling the competing intermediates (COOH* and HCOO*). Herein, nano-crumples induced Sn-Bi bimetallic interface-rich materials are in situ designed by tailored electrodeposition under CO 2 electrolysis conditions, significantly expediting formate production. Compared with Sn-Bi bulk alloy and pure Sn, this Sn-Bi interface pattern delivers optimum upshift of Sn p-band center, accordingly the moderate valence electron depletion, which leads to weakened Sn-C hybridization of…

• CL
  Canadian Light Source
• SS
  Salt Science Research Foundation

  Award: BL11B
• CC
  Compute Canada
• CA
  Chinese Academy of Sciences
• NS
  Natural Science Foundation of Guangdong Province

  Awards: 2017B020240002, 2019050001, 2021B1515020051
• UO
  University of Waterloo
• GS
  Guangdong Science and Technology Department

  Awards: 2020B0909030004, 2019050001, 2022A1515011804, 2017B020240002, 2019JC01L203
• HE
  Higher Education Discipline Innovation Project

  Awards: 2017B020240002, 2019050001
• NS
  Natural Sciences and Engineering Research Council of Canada