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Cyano Substituent on the Olefin Linkage: Promoting Rather than Inhibiting the Performance of Covalent Organic Frameworks
Yang, Yongliang; Luo, Na; Lin, Shiyun; Yao, Huan; Cai, Yaqi
2022-09-02
Source PublicationACS CATALYSIS
ISSN2155-5435
Volume12Issue:17Pages:10718-10726
AbstractIt is generally believed that the electron-withdrawing cyano group in the olefin linkage would inhibit the stability and pi-conjugation of covalent organic frameworks (COFs), which raises concerns about their optoelectronic properties. However, the structure-activity relationship between the structure of olefin linkages and properties of COFs is still inconclusive. In this work, imine-, vinylene-, and acrylonitrile-linked COFs with identical triphenyltriazine building blocks were designed and synthesized. Our work demonstrated that construction of acrylonitrile linkages not only enhanced the chemical stability and photostability but also led to remarkable optoelectronic properties with a record fluorescence quantum yield of 35.37% in the solid state. Further, the acrylonitrile linkage endows TTAN-COF/Pt NPs with superior and durable photocatalytic activity in both the hydrogen evolution reaction (11.94 mmol g(-1) h(-1); BET surface area, 739.28 m(2) g(-1)) and aerobic oxidation reaction. This work demonstrates that the acrylonitrile linkage can significantly enhance the optoelectronic properties and photocatalytic activities of COFs compared with the highly pi-conjugated vinylene linkage, providing a valuable reference for the design of optoelectronic functional materials.
Department环境化学与生态毒理学国家重点实验室 ; 环境化学与生态毒理学国家重点实验室
KeywordMOLECULAR DESIGN CRYSTALLINE PHOTOCATALYST EMISSION
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47498
Collection环境化学与生态毒理学国家重点实验室
Corresponding AuthorCai, Yaqi
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tsinghua Univ, MOE Key Lab Organ OptoElect & Mol Engn, Dept Chem, Beijing 100084, Peoples R China
4.Natl Inst Metrol, Div Chem & Analyt Sci, Beijing 100029, Peoples R China
5.Univ Chinese Acad Sci, Sch Environm, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yongliang,Luo, Na,Lin, Shiyun,et al. Cyano Substituent on the Olefin Linkage: Promoting Rather than Inhibiting the Performance of Covalent Organic Frameworks[J]. ACS CATALYSIS,2022,12(17):10718-10726.
APA Yang, Yongliang,Luo, Na,Lin, Shiyun,Yao, Huan,&Cai, Yaqi.(2022).Cyano Substituent on the Olefin Linkage: Promoting Rather than Inhibiting the Performance of Covalent Organic Frameworks.ACS CATALYSIS,12(17),10718-10726.
MLA Yang, Yongliang,et al."Cyano Substituent on the Olefin Linkage: Promoting Rather than Inhibiting the Performance of Covalent Organic Frameworks".ACS CATALYSIS 12.17(2022):10718-10726.
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