Enhancing Electrochemical Nitrate Reduction to Ammonia over Cu Nanosheets via Facet Tandem Catalysis
Dalian Institute of Chemical Physics · Chinese Academy of Sciences · +2 more institutions
Abstract
Abstract Electrochemical conversion of nitrate (NO 3 − ) into ammonia (NH 3 ) represents a potential way for achieving carbon‐free NH 3 production while balancing the nitrogen cycle. Herein we report a high‐performance Cu nanosheets catalyst which delivers a NH 3 partial current density of 665 mA cm −2 and NH 3 yield rate of 1.41 mmol h −1 cm −2 in a flow cell at −0.59 V vs. reversible hydrogen electrode. The catalyst showed a high stability for 700 h with NH 3 Faradaic efficiency of ≈88 % at 365 mA cm −2 . In situ spectroscopy results verify that Cu nanosheets are in situ derived from the as‐prepared CuO nanosheets under electrochemical NO 3 − reduction reaction conditions. Electrochemical measurements and…
Citation impact
- FWCI
- 17.59
- Percentile
- 100%
- References
- 66
Authors
8- YFYunfan Fu
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, University of Chinese Academy of Sciences
- SWShuo Wang
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy
- YWYi Wang
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, University of Chinese Academy of Sciences
- PWPengfei Wei
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy
- JSJiaqi Shao
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, University of Chinese Academy of Sciences
Topics & keywords
- Electrochemistry
- Catalysis
- Faraday efficiency
- Tandem
- Ammonia
- Ammonia production
- Inorganic chemistry
- Reversible hydrogen electrode