articleJournal of the American Chemical SocietyMar 6, 2023GREEN OA

Operando Spectroscopic Analysis of Axial Oxygen-Coordinated Single-Sn-Atom Sites for Electrochemical CO 2 Reduction

YDYachen DengJZJian ZhaoSWShifu WangRCRuru ChenJDJie Ding

Dalian Institute of Chemical Physics · Chinese Academy of Sciences · +11 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Sn-based materials have been demonstrated as promising catalysts for the selective electrochemical CO2 reduction reaction (CO2RR). However, the detailed structures of catalytic intermediates and the key surface species remain to be identified. In this work, a series of single-Sn-atom catalysts with well-defined structures is developed as model systems to explore their electrochemical reactivity toward CO2RR. The selectivity and activity of CO2 reduction to formic acid on Sn-single-atom sites are shown to be correlated with Sn(IV)-N4 moieties axially coordinated with oxygen (O–Sn–N4), reaching an optimal HCOOH Faradaic efficiency of 89.4% with a partial current density (jHCOOH) of 74.8 mA·cm–2 at −1.0 V vs…

Citation impact

175
total citations
FWCI
10.52
Percentile
100%
References
49
Citations per year

Authors

14

Topics & keywords

Topics
Keywords
  • Chemistry
  • Electrochemistry
  • Reduction (mathematics)
  • Oxygen reduction
  • Oxygen atom
  • Atom (system on chip)
  • Oxygen
  • Oxygen reduction reaction
No related works found for this paper.

Funding