Regulating the coordination structure of single-atom Fe-NxCy catalytic sites for benzene oxidation
China University of Petroleum, East China · Tsinghua University · +5 more institutions
Abstract
Abstract Atomically dispersed metal-N-C structures are efficient active sites for catalyzing benzene oxidation reaction (BOR). However, the roles of N and C atoms are still unclear. We report a polymerization-regulated pyrolysis strategy for synthesizing single-atom Fe-based catalysts, and present a systematic study on the coordination effect of Fe-N x C y catalytic sites in BOR. The special coordination environment of single-atom Fe sites brings a surprising discovery: Fe atoms anchored by four-coordinating N atoms exhibit the highest BOR performance with benzene conversion of 78.4% and phenol selectivity of 100%. Upon replacing coordinated N atoms by one or two C atoms, the BOR activities decrease gradually.…
Citation impact
- FWCI
- 22.21
- Percentile
- 100%
- References
- 53
Authors
15- YPYuan PanCorresponding
China University of Petroleum, East China, Tsinghua University
- YCYinjuan Chen
China University of Petroleum, East China, Tsinghua University
- KWKonglin Wu
Anhui Normal University, Tsinghua University
- ZCZheng Chen
Tsinghua University
- SLShoujie Liu
Anhui Normal University, Tsinghua University
Topics & keywords
- Catalysis
- Benzene
- Atom (system on chip)
- Coordination number
- Chemistry
- Phenol
- Metal
- Selectivity