期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 44, 页码 19570-19575出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202007063
关键词
heterostructures; lithium-sulfur batteries; mesoporous carbon; self-assembly; two-dimensional materials
资金
- Australian Research Council (ARC) Linkage Project [LP180100429]
- 111 Project of China [B17020]
- Natural Science Foundation of Jiangsu Province [BK20170778]
- Postdoctoral Fellowships of the Japan Society for the Promotion Science [18F18764, 18F18038]
- Grants-in-Aid for Scientific Research [18F18038, 18F18764] Funding Source: KAKEN
Two-dimensional (2D) mesoporous heterostructures combining ultrathin nanosheet morphology, periodic porous surface structures, and diverse hybrid compositions have become increasingly important for renewable energy storage and electronics. However, it remains a great challenge to develop a universal method to prepare 2D mesoporous heterostructures. Herein, we report a composite-micelle-directed interfacial assembly method to synthesize heterostructures of an ultrathin 2D material covered with mesoporous monolayers assembled on both sides. To demonstrate the concept, we first fabricated a new sandwichlike carbon@MXene@carbon mesoporous heterostructure through the self-assembly of exfoliated MXene nanosheets and block copolymer F127/melamine-formaldehyde resin composite micelles and subsequent thermal treatment. Finally, we demonstrate that the carbon@MXene@carbon mesoporous heterostructured nanosheets manifest remarkably enhanced electrochemical performance as a cathode material for lithium-sulfur batteries.
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