articleNature CommunicationsMar 11, 2022GOLD OA

Complementary Operando Spectroscopy identification of in-situ generated metastable charge-asymmetry Cu2-CuN3 clusters for CO2 reduction to ethanol

XSXiaozhi SuZJZhuoli JiangJZJing ZhouHLHengjie LiuDZDanni Zhou

Chinese Academy of Sciences · Shanghai Advanced Research Institute · +7 more institutions

PubMed
Indexed incrossrefdoajpubmed

Abstract

Abstract Copper-based materials can reliably convert carbon dioxide into multi-carbon products but they suffer from poor activity and product selectivity. The atomic structure-activity relationship of electrocatalysts for the selectivity is controversial due to the lacking of systemic multiple dimensions for operando condition study. Herein, we synthesized high-performance CO 2 RR catalyst comprising of CuO clusters supported on N-doped carbon nanosheets, which exhibited high C 2+ products Faradaic efficiency of 73% including decent ethanol selectivity of 51% with a partial current density of 14.4 mA/cm −2 at −1.1 V vs. RHE. We evidenced catalyst restructuring and tracked the variation of the active states…

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Topics & keywords

Topics
Keywords
  • Catalysis
  • Selectivity
  • X-ray photoelectron spectroscopy
  • XANES
  • Materials science
  • X-ray absorption spectroscopy
  • Faraday efficiency
  • Cluster (spacecraft)
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