Inter-site structural heterogeneity induction of single atom Fe catalysts for robust oxygen reduction
China University of Petroleum, East China · Chang Gung University · +3 more institutions
Abstract
Abstract Metal-nitrogen-carbon catalysts with hierarchically dispersed porosity are deemed as efficient geometry for oxygen reduction reaction (ORR). However, catalytic performance determined by individual and interacting sites originating from structural heterogeneity is particularly elusive and yet remains to be understood. Here, an efficient hierarchically porous Fe single atom catalyst (Fe SAs-HP) is prepared with Fe atoms densely resided at micropores and mesopores. Fe SAs-HP exhibits robust ORR performance with half-wave potential of 0.94 V and turnover frequency of 5.99 e −1 s −1 site −1 at 0.80 V. Theoretical simulations unravel a structural heterogeneity induced optimization, where mesoporous Fe-N 4…
Citation impact
- FWCI
- 21.87
- Percentile
- 100%
- References
- 59
Authors
12- PZPeng ZhangCorresponding
China University of Petroleum, East China
- HCHsiao‐Chien Chen
Chang Gung University, Chang Gung Memorial Hospital, Linkou Chang Gung Memorial Hospital
- HZHouyu Zhu
China University of Petroleum, East China
- KCKuo Chen
China University of Petroleum, East China
- TLTuya Li
China University of Petroleum, East China
Topics & keywords
- Catalysis
- Microporous material
- Mesoporous material
- Porosity
- Materials science
- Active site
- Desorption
- Atom (system on chip)