globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2021.07.016
论文题名:
Designed polymeric conjugation motivates tunable activation of molecular oxygen in heterogeneous organic photosynthesis
作者: Sun W.; Xiang Y.; Jiang Z.; Wang S.; Yang N.; Jin S.; Sun L.; Teng H.; Chen H.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
语种: 英语
中文关键词: Aerobic oxidation ; Conjugated polymers ; Molecular oxygen activation ; Photocatalysis ; Polymeric conjugation
英文关键词: Amines ; Chemical activation ; Molecular oxygen ; Photocatalysis ; Photosynthesis ; Sulfur compounds ; Aerobic oxidations ; Alkynyl groups ; Conjugated microporous polymers ; Molecular oxygen activation ; Organic reaction ; Organics ; Photo-catalytic ; Polymeric conjugation ; Reactive oxygen species ; Tunables ; Conjugated polymers
英文摘要: Photocatalytic oxidative organic reactions are important synthetic transformations, and research on reaction selectivity by reactive oxygen species (ROS) is significant. To date, however, there has rarely been any focus on the directed generation of ROSs. Herein, we report the first identification of tunable molecular oxygen activation induced by polymeric conjugation in nonmetallic conjugated microporous polymers (CMP). The conjugation between these can be achieved by the introduction of alkynyl groups. CMP-A with an alkynyl bridge facilitates the intramolecular charge mobility while CMP-D, lacking an alkynyl group enhances the photoexcited carrier build-up on the surface from diffusion. These different processes dominate the directed ROS generation of the superoxide radical ([rad]O2−) and singlet oxygen (1O2), respectively. This theory is substantiated by the different performances of these CMPs in the aerobic oxidation of sulfides and the dehydrogenative coupling of amines, and could provide insight into the rational design of CMPs for various heterogeneous organic photosynthesis. © 2021 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170397
Appears in Collections:气候变化与战略

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作者单位: College of Science, Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Environment Correlative Dietology (Ministry of Education), Huazhong Agricultural University, Wuhan, 430070, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

Recommended Citation:
Sun W.,Xiang Y.,Jiang Z.,et al. Designed polymeric conjugation motivates tunable activation of molecular oxygen in heterogeneous organic photosynthesis[J]. Science Bulletin,2021-01-01
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