期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 3, 页码 849-853出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201812685
关键词
cathode materials; conjugated polymer frameworks; gas adsorption; nitrogen doping; sp(2) carbon
资金
- European Union's Horizon 2020 research and innovation program [696656]
- Coordination Networks: Building Blocks for Functional Systems [SPP 1928]
- Center for Advancing Electronics Dresden (cfaed)
- European Social Fund
- Federal State of Saxony (ESF-Project GRAPHD, TU Dresden)
- NSFC [51722304, 21720102002, 5171101862]
A two-dimensional (2D) sp(2)-carbon-linked conjugated polymer framework (2D CCP-HATN) has a nitrogen-doped skeleton, a periodical dual-pore structure and high chemical stability. The polymer backbone consists of hexaazatrinaphthalene (HATN) and cyanovinylene units linked entirely by carbon-carbon double bonds. Profiting from the shape-persistent framework of 2D CCP-HATN integrated with the electrochemical redox-active HATN and the robust sp(2) carbon-carbon linkage, 2D CCP-HATN hybridized with carbon nanotubes shows a high capacity of 116 mA h g(-1), with high utilization of its redox-active sites and superb cycling stability (91 % after 1000 cycles) and rate capability (82 %, 1.0 A g(-1) vs. 0.1 A g(-1)) as an organic cathode material for lithium-ion batteries.
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