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Title: Pyrolyzed Triazine-Based Nanoporous Frameworks Enable Electrochemical CO2 Reduction in Water

Journal Article · · ACS Applied Materials and Interfaces
ORCiD logo [1];  [2];  [3];  [4];  [3]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [4];  [3]; ORCiD logo [2]
  1. Chinese Academy of Sciences (CAS), Lanzhou (China). State Key Lab. for Oxo Synthesis and Selective Oxidation, Suzhou Research Inst. of Lanzhou Inst. of Chemical Physics; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  3. Chinese Academy of Sciences (CAS), Lanzhou (China). State Key Lab. for Oxo Synthesis and Selective Oxidation, Suzhou Research Inst. of Lanzhou Inst. of Chemical Physics
  4. East China Univ. of Science and Technology, Shanghai (China). School of Chemistry and Chemical Engineering
  5. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry
  6. Shanghai Jiao Tong Univ., Shanghai (China). School of Chemistry and Chemical Engineering

The first study of rational synthesis of triazine-based nanoporous frameworks as electrocatalysts for CO2 reduction reaction (CO2RR) was presented. The resulting optimized framework with rich pyridinic nitrogen-containing sites can selectively reduce CO2 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 CO2RR-active pyridinic N-doped sites during the high-temperature ZnCl2-promoted polymerization process. We anticipate that this study may facilitate new possibilities for the development of porous organic polymers for electrochemical conversion of CO2.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1494879
Journal Information:
ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 50 Vol. 10; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Covalent triazine frameworks – a sustainable perspective journal January 2020