Multisite (Cu 0 /Cu + /Cu 2+ –Fe) Interfaces Enhance Nitrate Adsorption and Active Hydrogen Utilization for Ammonia Electrosynthesis from Neutral Nitrate
Tongji University · State Key Laboratory of Pollution Control and Resource Reuse · +2 more institutions
Abstract
The electroreduction of hazardous nitrate (NO3–) to valuable ammonia (NH3) represents a sustainable approach to environmental remediation and nitrogen recovery. However, most catalysts exhibit undesirable NH3 yield rates and poor Faradaic efficiency (FE) for the NO3– reduction reaction (NO3RR) in near-neutral and low-concentration NO3–environments. Herein, the Fe-doped multivalent copper oxide (CuxO–Fe) was prepared to construct multisite interfaces that promote NO3– adsorption and H2O dissociation-protonation processes. The CuxO–Fe catalyst achieves a superior NH3 yield rate of 3.5 mg·h–1·mgcat–1 (3.9 mg·h–1·cm–2), an excellent FE of 97.7%, and a NH3 selectivity of 98.7%, outperforming Fe oxide…
Citation impact
- FWCI
- 22.43
- Percentile
- 100%
- References
- 76
Authors
6- DLDanping Li
Tongji University, State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security
- TWTongde Wang
Tongji University
- GGGuohua GaoCorresponding
Tongji University
- HWHan Wang
Tongji University, State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security
- LNLingfeng Ni
Hohai University
Topics & keywords
- Catalysis
- Electrocatalyst
- Adsorption
- Ammonia
- Electrochemistry
- Electrosynthesis
- Ammonia production
- Selectivity