期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 34, 期 12, 页码 1008-1013出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201300227
关键词
conjugated microporous polymers; covalent organic frameworks; graphitic carbon nitride; heptazine; photocatalytic water splitting
资金
- BMBF
- National Basic Research Program of China [2013CB632405]
- National Natural Science Foundation of China [21033003, 21173043]
- Department of Education of Fujian Province in China
Two emerging material classes are combined in this work, namely polymeric carbon nitrides and microporous polymer networks. The former, polymeric carbon nitrides, are composed of amine-bridged heptazine moieties and showed interesting performance as a metal-free photocatalyst. These materials have, however, to be prepared at high temperatures, making control of their chemical structure difficult. The latter, microporous polymer networks have received increasing interest due to their high surface area, giving rise to interesting applications in gas storage or catalysis. Here, the central building block of carbon nitrides, a functionalized heptazine as monomer, and tecton are used to create microporous polymer networks. The resulting heptazine-based microporous polymers show high porosity, while their chemical structure resembles the ones of carbon nitrides. The polymers show activity for the photocatalytic production of hydrogen from water, even under visible light illumination.
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