Hierarchical porous carbons with layer-by-layer motif architectures from confined soft-template self-assembly in layered materials

Jie Wang, Jing Tang, Bing Ding, Victor Malgras, Zhi Chang, Xiaodong Hao, Ya Wang, Hui Dou, Xiaogang Zhang () and Yusuke Yamauchi ()
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Jie Wang: Key Laboratory of Materials and Technologies for Energy Conversion, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics
Jing Tang: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
Bing Ding: Key Laboratory of Materials and Technologies for Energy Conversion, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics
Victor Malgras: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
Zhi Chang: Key Laboratory of Materials and Technologies for Energy Conversion, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics
Xiaodong Hao: Key Laboratory of Materials and Technologies for Energy Conversion, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics
Ya Wang: Key Laboratory of Materials and Technologies for Energy Conversion, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics
Hui Dou: Key Laboratory of Materials and Technologies for Energy Conversion, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics
Xiaogang Zhang: Key Laboratory of Materials and Technologies for Energy Conversion, College of Materials Science & Engineering, Nanjing University of Aeronautics and Astronautics
Yusuke Yamauchi: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)

Nature Communications, 2017, vol. 8, issue 1, 1-9

Abstract: Abstract Although various two-dimensional (2D) nanomaterials have been explored as promising capacitive materials due to their unique layered structure, their natural restacking tendency impedes electrolyte transport and significantly restricts their practical applications. Herein, we synthesize all-carbon layer-by-layer motif architectures by introducing 2D ordered mesoporous carbons (OMC) within the interlayer space of 2D nanomaterials. As a proof of concept, MXenes are selected as 2D hosts to design 2D–2D heterostructures. Further removing the metal elements from MXenes leads to the formation of all-carbon 2D–2D heterostructures consisting of alternating layers of MXene-derived carbon (MDC) and OMC. The OMC layers intercalated with the MDC layers not only prevent restacking but also facilitate ion diffusion and electron transfer. The performance of the obtained hybrid carbons as supercapacitor electrodes demonstrates their potential for upcoming electronic devices. This method allows to overcome the restacking and blocking of 2D nanomaterials by constructing ion-accessible OMC within the 2D host material.

Date: 2017
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DOI: 10.1038/ncomms15717

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