Breaking Local Charge Symmetry of Iron Single Atoms for Efficient Electrocatalytic Nitrate Reduction to Ammonia
University of Science and Technology of China · Hefei National Center for Physical Sciences at Nanoscale · +6 more institutions
Abstract
Abstract The electrochemical conversion of nitrate pollutants into value‐added ammonia is a feasible way to achieve artificial nitrogen cycle. However, the development of electrocatalytic nitrate‐to‐ammonia reduction reaction (NO 3 − RR) has been hampered by high overpotential and low Faradaic efficiency. Here we develop an iron single‐atom catalyst coordinated with nitrogen and phosphorus on hollow carbon polyhedron (denoted as Fe−N/P−C) as a NO 3 − RR electrocatalyst. Owing to the tuning effect of phosphorus atoms on breaking local charge symmetry of the single‐Fe‐atom catalyst, it facilitates the adsorption of nitrate ions and enrichment of some key reaction intermediates during the NO 3 − RR process. The…
Citation impact
- FWCI
- 16.10
- Percentile
- 100%
- References
- 65
Authors
14- JXJingwen Xu
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- SZShengbo Zhang
Chinese Academy of Sciences, Nanomaterials Research (United States), Institute of Solid State Physics
- HLHengjie Liu
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- SLShuang Liu
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- YYYuan Yuan
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
Topics & keywords
- Faraday efficiency
- Catalysis
- Overpotential
- Chemistry
- Ammonia production
- Electrocatalyst
- Electrochemistry
- Inorganic chemistry