期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 24, 期 66, 页码 17454-17458出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201804496
关键词
CO2 reduction; conjugated polymers; organic semiconductors; photochemistry; triazine-based polymers
资金
- National Key Technologies R & D Program of China [2018YFA0209301]
- National Natural Science Foundation of China [21802022, 21425309, 21761132002, 21861130353]
- 111 Project [D16008]
- Guest PhD Program from Graduate School of Material Science in Mainz
- China Scholarship Council (CSC)
- Max Planck Society
- PPP project [201801940015]
The reduction of CO2 with visible light is a highly sustainable method for producing valuable chemicals. The function-led design of organic conjugated semiconductors with more chemical variety than that of inorganic semiconductors has emerged as a method for achieving carbon photofixation chemistry. Here, we report the molecular engineering of triazine-based conjugated microporous polymers to capture, activate and reduce CO2 to CO with visible light. The optical band gap of the CMPs is engineered by varying the organic electron-withdrawing (benzothiadiazole) and electron-donating units (thiophene) on the skeleton of the triazine rings while creating organic donor-acceptor junctions to promote the charge separation. This engineering also provides control of the texture, surface functionality and redox potentials of CMPs for achieving the light-induced conversion of CO2 to CO ambient conditions.
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