Boosting Electrocatalytic Nitrate Reduction to Ammonia via Promoting Water Dissociation
Dalian Institute of Chemical Physics · Chinese Academy of Sciences · +3 more institutions
Abstract
Electrocatalytic nitrate reduction reaction (NO3–RR) opens opportunities for ammonia production. The sluggish kinetics of this multielectron and multiproton process has been regarded as the key issue. Herein, we report a Cu1Co5 alloy for electrocatalytic NO3–RR to NH3. It achieves a high current density (453 mA cm–2) and Faradaic efficiency (96.2%) for NH3 production at 0.075 V vs RHE, with a half-cell energy efficiency of 44.9%, higher than those of Cu, Co, and other Co-based alloys, and is among the highest value reported. We found that the interaction between Cu and Co reorganizes their electronic structure in alloys. The NO3– adsorption switches to a spontaneous process, and the *NO → *N and *NH → *NH2…
Citation impact
- FWCI
- 13.40
- Percentile
- 100%
- References
- 46
Authors
6- YZYiyang Zhou
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, University of Chinese Academy of Sciences
- RDRuizhi Duan
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Lanzhou University
- HLHao Li
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, University of Chinese Academy of Sciences
- MZMiao Zhao
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, University of Chinese Academy of Sciences
- CDChunmei DingCorresponding
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, University of Chinese Academy of Sciences
Topics & keywords
- Dissociation (chemistry)
- Faraday efficiency
- Ammonia
- Ammonia production
- Catalysis
- Electrocatalyst
- Chemistry
- Nitrate
- Affordable and clean energy