Asymmetric dinitrogen-coordinated nickel single-atomic sites for efficient CO2 electroreduction
University of Science and Technology of China · National Synchrotron Radiation Laboratory · +3 more institutions
Abstract
Abstract Developing highly efficient, selective and low-overpotential electrocatalysts for carbon dioxide (CO 2 ) reduction is crucial. This study reports an efficient Ni single-atom catalyst coordinated with pyrrolic nitrogen and pyridinic nitrogen for CO 2 reduction to carbon monoxide (CO). In flow cell experiments, the catalyst achieves a CO partial current density of 20.1 mA cm geo −2 at −0.15 V vs. reversible hydrogen electrode (V RHE ). It exhibits a high turnover frequency of over 274,000 site −1 h −1 at −1.0 V RHE and maintains high Faradaic efficiency of CO (FE CO ) exceeding 90% within −0.15 to −0.9 V RHE . Operando synchrotron-based infrared and X-ray absorption spectra, and theoretical calculations…
Citation impact
- FWCI
- 11.37
- Percentile
- 100%
- References
- 55
Authors
13- YZYuzhu ZhouCorresponding
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- QZQuan Zhou
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- HLHengjie Liu
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- WXWenjie Xu
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- ZWZhouxin Wang
University of Science and Technology of China, National Synchrotron Radiation Laboratory
Topics & keywords
- Overpotential
- Faraday efficiency
- Catalysis
- Electrochemical reduction of carbon dioxide
- Nickel
- Carbon monoxide
- Chemistry
- Reversible hydrogen electrode
Funding
- SSSalt Science Research Foundation
- NNNational Natural Science Foundation of ChinaAwards: U1932201, 12225508, 22208336
- NSNational Synchrotron Radiation Laboratory
- NSNatural Science Foundation of Anhui ProvinceAward: 2108085QA31
- FRFundamental Research Funds for the Central UniversitiesAwards: WK2310000099, WK2310000111
- BSBeijing Synchrotron Radiation Facility