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Strategies for Enhancing the Photocatalytic and Electrocatalytic Efficiency of Covalent Triazine Frameworks for CO 2 Reduction.

Gang LiuShaobo LiuCui LaiLei QinMingming ZhangYixia LiMengyi XuDengsheng MaFuhang XuShiyu LiuMingyang DaiQiang Chen
Published in: Small (Weinheim an der Bergstrasse, Germany) (2023)
Converting carbon dioxide (CO 2 ) into fuel and high-value-added chemicals is considered a green and effective way to solve global energy and environmental problems. Covalent triazine frameworks (CTFs) are extensively utilized as an emerging catalyst for photo/electrocatalytic CO 2 reduction reaction (CO 2 RR) recently recognized for their distinctive qualities, including excellent thermal and chemical stability, π-conjugated structure, rich nitrogen content, and a strong affinity for CO 2 , etc. Nevertheless, single-component CTFs have the problems of accelerated recombination of photoexcited electron-hole pairs and restricted conductivity, which limit their application for photo/electrocatalytic CO 2 RR. Therefore, emphasis will then summarize the strategies for enhancing the photocatalytic and electrocatalytic efficiency of CTFs for CO 2 RR in this paper, including atom doping, constructing a heterojunction structure, etc. This review first illustrates the synthesis strategies of CTFs and the advantages of CTFs in the field of photo/electrocatalytic CO 2 RR. Subsequently, the mechanism of CTF-based materials in photo/electrocatalytic CO 2 RR is described. Lastly, the challenges and future prospects of CTFs in photo/electrocatalytic CO 2 RR are addressed, which offers a fresh perspective for the future development of CTFs in photo/electrocatalytic CO 2 RR.
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