Regulation of Coordination Number over Single Co Sites: Triggering the Efficient Electroreduction of CO 2
University of Science and Technology of China · Collaborative Innovation Center of Chemistry for Energy Materials · +2 more institutions
Abstract
Abstract The design of active, selective, and stable CO 2 reduction electrocatalysts is still challenging. A series of atomically dispersed Co catalysts with different nitrogen coordination numbers were prepared and their CO 2 electroreduction catalytic performance was explored. The best catalyst, atomically dispersed Co with two‐coordinate nitrogen atoms, achieves both high selectivity and superior activity with 94 % CO formation Faradaic efficiency and a current density of 18.1 mA cm −2 at an overpotential of 520 mV. The CO formation turnover frequency reaches a record value of 18 200 h −1 , surpassing most reported metal‐based catalysts under comparable conditions. Our experimental and theoretical results…
Citation impact
- FWCI
- 27.08
- Percentile
- 100%
- References
- 37
Authors
15- XWXiaoqian Wang
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
- CZChen Zhao
University of Science and Technology of China
- XZXuyan Zhao
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
- TYTao Yao
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- WCWenxing Chen
Tsinghua University
Topics & keywords
- Overpotential
- Catalysis
- Faraday efficiency
- Selectivity
- Coordination number
- Nitrogen
- Chemistry
- Inorganic chemistry