Ionic Exchange of Metal–Organic Frameworks to Access Single Nickel Sites for Efficient Electroreduction of CO 2
University of Science and Technology of China · Collaborative Innovation Center of Chemistry for Energy Materials · +2 more institutions
Abstract
Single-atom catalysts often exhibit unexpected catalytic activity for many important chemical reactions because of their unique electronic and geometric structures with respect to their bulk counterparts. Herein we adopt metal–organic frameworks (MOFs) to assist the preparation of a catalyst containing single Ni sites for efficient electroreduction of CO2. The synthesis is based on ionic exchange between Zn nodes and adsorbed Ni ions within the cavities of the MOF. This single-atom catalyst exhibited an excellent turnover frequency for electroreduction of CO2 (5273 h–1), with a Faradaic efficiency for CO production of over 71.9% and a current density of 10.48 mA cm–2 at an overpotential of 0.89 V. Our findings…
Citation impact
- FWCI
- 41.11
- Percentile
- 100%
- References
- 30
Authors
10- CZChangming ZhaoCorresponding
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
- XDXinyao Dai
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
- TYTao Yao
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- WCWenxing Chen
Tsinghua University
- XWXiaoqian Wang
University of Science and Technology of China, Collaborative Innovation Center of Chemistry for Energy Materials
Topics & keywords
- Overpotential
- Chemistry
- Catalysis
- Faraday efficiency
- Nickel
- Ionic bonding
- Metal-organic framework
- Inorganic chemistry