Pyrolyzed Triazine-Based Nanoporous Frameworks Enable Electrochemical CO 2 Reduction in Water

Xiang Zhu, Chengcheng Tian, Haihong Wu, Yanyan He, Lin He, Hai Wang, Xiaodong Zhuang, Honglai Liu, Chungu Xia, Sheng Dai

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

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 languageEnglish
Pages (from-to)43588-43594
Number of pages7
JournalACS Applied Materials and Interfaces
Volume10
Issue number50
DOIs
StatePublished - 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

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