Three-Phase-Heterojunction Cu/Cu₂O-Sb₂O₃ Catalyst Enables Efficient CO₂ Electroreduction to CO and High-Performance Aqueous Zn-CO₂ Battery.

ABSTRACT: Zn-CO₂ batteries are excellent candidates for both electrical energy output and CO₂ utilization, whereas the main challenge is to design electrocatalysts for electrocatalytic CO₂ reduction reactions with high selectivity and low cost. Herein, the three-phase heterojunction Cu-based electrocatalyst (Cu/Cu₂O-Sb₂O₃-15) is synthesized and evaluated for highly selective CO₂ reduction to CO, which shows the highest faradaic efficiency of 96.3% at -1.3 V versus reversible hydrogen electrode, exceeding the previously reported best values for Cu-based materials. In situ spectroscopy and theoretical analysis indicate that the Sb incorporation into the three-phase heterojunction Cu/Cu₂O-Sb₂O₃

SUBMITTER: Ma J 

PROVIDER: S-EPMC11040368 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature