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Covalent Triazine Frameworks-derived n,p dual-doped porous carbons for Highly Efficient Electrochemical Reduction of CO_(2)

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Chinese Journal of Structural Chemistry 2021年第9期40卷 1213-1222,1111页

作者： ZHAnG Meng-Di YI Jun-Dong HUAnG Yuan-Biao CAO Rong College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350007China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China Fujian College University of Chinese Academy of SciencesFuzhou 350002China

Electroreduction of CO_(2)into chemicals is of great importance in the global carbon *** noble-metal based catalysts and single-atom catalysts(SACs)are known to be active for CO_(2)electroreduction reaction(CO_(2)RR),the high cost of noble-metal and the lack of effective synthesis approaches to prepare SACs have tremendously hindered the ***-metal doped carbon materials have attracted great interest because of their reasonable cost,chemical stability and excellent electrical ***,the design and fabrication of highly efficient non-metal doped carbon electrocatalysts for CO_(2)RR to meet industry demands still remains a big ***,triphenylphosphine@covalent triazine frameworks(CTFs)composites were employed as precursors to fabricate n,p dual-doped porous carbon catalysts pCTF-X-Y(X represents the carbonization temperature,and Y represents the mass ratio of CTF to triphenylphosphine)for CO_(2)*** to the high specific surface areas and synergistic effect between n and p,the obtained pCTF-1000-5 exhibited high selectivity for CO production up to 84.3%at–0.7 V versus the reversible hydrogen electrode(***)and long-term durability over 16 h,which are better than the reported n,p dual-doped carbon catalysts in aqueous *** work provides a new way to design and fabricate non-metal catalysts for electrocatalysis.

关键词： carbon dioxide electrocatalysis covalent triazine frameworks n,p dual-doped carbons carbon monoxide

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