In situ modulating coordination fields of single-atom cobalt catalyst for enhanced oxygen reduction reaction
University of Science and Technology of China · Central South University · +3 more institutions
Abstract
Abstract Single-atom catalysts, especially those with metal−N 4 moieties, hold great promise for facilitating the oxygen reduction reaction. However, the symmetrical distribution of electrons within the metal−N 4 moiety results in unsatisfactory adsorption strength of intermediates, thereby limiting their performance improvements. Herein, we present atomically coordination-regulated Co single-atom catalysts that comprise a symmetry-broken Cl−Co−N 4 moiety, which serves to break the symmetrical electron distribution. In situ characterizations reveal the dynamic evolution of the symmetry-broken Cl−Co−N 4 moiety into a coordination-reduced Cl−Co−N 2 structure, effectively optimizing the 3 d electron filling of Co…
Citation impact
- FWCI
- 22.43
- Percentile
- 100%
- References
- 45
Authors
9- MLMeihuan Liu
University of Science and Technology of China, Central South University, National Synchrotron Radiation Laboratory
- JZJing Zhang
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- HSHui SuCorresponding
Hunan University, Hunan Normal University
- YJYaling Jiang
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- WZWanlin Zhou
University of Science and Technology of China, National Synchrotron Radiation Laboratory
Topics & keywords
- Moiety
- Catalysis
- Cobalt
- Metal
- Atom (system on chip)
- Chemistry
- Oxygen
- Photochemistry