Universal Access to Two‐Dimensional Mesoporous Heterostructures by Micelle‐Directed Interfacial Assembly

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...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2020-10, Vol.59 (44), p.19570-19575
Main Authors: Wang, Jie, Chang, Zhi, Ding, Bing, Li, Tao, Yang, Gaoliang, Pang, Zhibin, Nakato, Teruyuki, Eguchi, Miharu, Kang, Yong‐Mook, Na, Jongbeom, Guan, Bu Yuan, Yamauchi, Yusuke
Format: Article
Language:English
Subjects:
Assembly
Batteries
Block copolymers
Carbon
Composite materials
Electrochemical analysis
Electrochemistry
Electrode materials
Electrons
Energy storage
Formaldehyde resins
Heat treatment
Heterostructures
Lithium
Lithium sulfur batteries
Melamine
mesoporous carbon
Micelles
Morphology
Nanosheets
Renewable energy
self-assembly
Sulfur
Two dimensional materials
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Summary: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. A general composite‐micelle‐directed interfacial assembly method was developed to prepare mesoporous heterostructures (see picture). With their structural and compositional advantages, the unique sandwichlike mesoporous carbon@MXene@mesoporous carbon heterostructured nanosheets exhibited remarkable electrochemical performance as a cathode material for lithium–sulfur batteries.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202007063