Cyano Substituent on the Olefin Linkage: Promoting Rather than Inhibiting the Performance of Covalent Organic Frameworks
文献类型：期刊论文
| 作者 | Yang, Yongliang; Luo, Na ; Lin, Shiyun; Yao, Huan; Cai, Yaqi
|
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2022-09-02 |
| 卷号 | 12期号:17页码:10718-10726 |
| 关键词 | MOLECULAR DESIGN CRYSTALLINE PHOTOCATALYST EMISSION |
| ISSN号 | 2155-5435 |
| 英文摘要 | It 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. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47498]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 通讯作者 | Cai, Yaqi |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Environm, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China 2.Tsinghua Univ, MOE Key Lab Organ OptoElect & Mol Engn, Dept Chem, Beijing 100084, Peoples R China 3.Natl Inst Metrol, Div Chem & Analyt Sci, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：生态环境研究中心
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