articleAdvanced MaterialsDec 16, 2023Closed access

Vacancy Defects Inductive Effect of Asymmetrically Coordinated Single‐Atom Fe─N 3 S 1 Active Sites for Robust Electrocatalytic Oxygen Reduction with High Turnover Frequency and Mass Activity

YZYilin ZhaoHCHsiao‐Chien ChenXMXuelu MaJLJiaye LiQYQing Yuan

China University of Petroleum, East China · Chang Gung University of Science and Technology · +8 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Abstract The development of facile, efficient synthesis method to construct low‐cost and high‐performance single‐atom catalysts (SACs) for oxygen reduction reaction (ORR) is extremely important, yet still challenging. Herein, an atomically dispersed N, S co‐doped carbon with abundant vacancy defects (NSC‐vd) anchored Fe single atoms (SAs) is reported and a vacancy defects inductive effect is proposed for promoting electrocatalytic ORR. The optimized catalyst featured of stable Fe─N 3 S 1 active sites exhibits excellent ORR activity with high turnover frequency and mass activity. In situ Raman, attenuated total reflectance surface enhanced infrared absorption spectroscopy reveal the Fe─N 3 S 1 active sites…

Citation impact

185
total citations
FWCI
11.03
Percentile
100%
References
69
Citations per year

Authors

17

Topics & keywords

Topics
Keywords
  • Vacancy defect
  • Catalysis
  • Materials science
  • Atom (system on chip)
  • Active site
  • Raman spectroscopy
  • Adsorption
  • Absorption (acoustics)
No related works found for this paper.

Funding