Regulating the Coordination Geometry and Oxidation State of Single‐Atom Fe Sites for Enhanced Oxygen Reduction Electrocatalysis

• Published in: Small (Weinheim an der Bergstrasse, Germany) Vol. 19; no. 24; pp. e2300373 - n/a
• Main Authors: Wang, Minjie, Wang, Li, Li, Qingbin, Wang, Dan, Yang, Liu, Han, Yongjun, Ren, Yuan, Tian, Gang, Zheng, Xiaoyang, Ji, Muwei, Zhu, Caizhen, Peng, Lishan, Waterhouse, Geoffrey I. N.
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.06.2023
• Subjects: Catalysts; Chemical reduction; Coordination; Density functional theory; Desorption; Electrolytic cells; Fe coordination geometry; Fe single atoms; FeN x sites; Metal air batteries; Nanotechnology; Open circuit voltage; Oxidation; oxygen reduction reaction; Oxygen reduction reactions; Polypyrroles; Proton exchange membrane fuel cells; Valence; Zinc-oxygen batteries; zinc–air batteries; oxygen reduction reaction; Fe single atoms; FeN x sites; zinc-air batteries; Fe coordination geometry

FeNC catalysts demonstrate remarkable activity and stability for the oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells and Zn–air batteries (ZABs). The local coordination of Fe single atoms in FeNC catalysts strongly impacts ORR activity. Herein, FeNC catalysts contain...