Abstract
The first study of rational synthesis of triazine-based nanoporous frameworks as electrocatalysts for CO 2 reduction reaction (CO 2 RR) was presented. The resulting optimized framework with rich pyridinic nitrogen-containing sites can selectively reduce CO 2 to CO in water with a high Faradic efficiency of ca. 82% under a moderate overpotential of 560 mV. The key of our success lies in the use of pyridine-based backbones as sacrificial groups inside the triazine framework for in situ generation of CO 2 RR-active pyridinic N-doped sites during the high-temperature ZnCl 2 -promoted polymerization process. We anticipate that this study may facilitate new possibilities for the development of porous organic polymers for electrochemical conversion of CO 2 .
Original language | English |
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Pages (from-to) | 43588-43594 |
Number of pages | 7 |
Journal | ACS Applied Materials and Interfaces |
Volume | 10 |
Issue number | 50 |
DOIs | |
State | Published - Dec 19 2018 |
Funding
This research was supported financially by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. Financial supports from National Program for Thousand Young Talents of China, Foundation research project of Jiangsu Province (BK20171242), National Natural Science Foundation of China (21633013, 91645118), and Key Research Program of Frontier Sciences of CAS (QYZDJ-SSW-SLH051) are much appreciated.
Keywords
- conjugated triazine frameworks
- electrochemical CO reduction
- high CO Faradic efficiency
- porous organic polymers
- pyridinic N-doped sites
- sacrificial synthesis