Heteroatom‐Driven Coordination Fields Altering Single Cerium Atom Sites for Efficient Oxygen Reduction Reaction
Nankai University · Hong Kong Polytechnic University
Abstract
Abstract For current single‐atom catalysts (SACs), modulating the coordination environments of rare‐earth (RE) single atoms with complex electronic orbital and flexible chemical states is still limited. Herein, cerium (Ce) SAs supported on a P, S, and N co‐doped hollow carbon substrate (Ce SAs/PSNC) for the oxygen reduction reaction (ORR) are reported. The as‐prepared Ce SAs/PSNC possesses a half‐wave potential of 0.90 V, a turnover frequency value of 52.2 s −1 at 0.85 V, and excellent stability for the ORR, which exceeds the commercial Pt/C and most recent SACs. Ce SAs/PSNC‐based liquid zinc–air batteries (ZABs) exhibit a high and stable open‐circuit voltage of 1.49 V and a maximum power density of 212 mW cm…
Citation impact
- FWCI
- 13.62
- Percentile
- 100%
- References
- 51
Authors
6Topics & keywords
- Cerium
- Oxygen reduction reaction
- Materials science
- Heteroatom
- Reduction (mathematics)
- Atom (system on chip)
- Oxygen atom
- Oxygen
- Affordable and clean energy