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Nano Research 2018, 11(7): 3603-3618 https://doi.org/10.1007/s12274-017-1927-2
Research Article | Issue | Published: 02 August 2018

Ultrathin MoS2 with expanded interlayers supported on hierarchical polypyrrole-derived amorphous N-doped carbon tubular structures for high-performance Li/Na-ion batteries

Show Author's Information Xiaojun Zhao1,2,  Gang Wang3,  Xiaojie Liu1( ),  Xinliang Zheng4,  Hui Wang1( )
Key Laboratory of Synthetic and Nature Functional Molecule Chemistry (Ministry of Education) DepartmentCollege of Chemistry and Materials ScienceNorthwest UniversityXi'an710127China
Department of Chemistry and Chemical EngineeringAnkang UniversityAnkang725000China
National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base)National Photoelectric Technology and Functional Materials and Application International Cooperation Base Institute of Photonics and Photon-TechnologyNorthwest UniversityXi'an710127China
School of PhysicsNorthwest UniversityXi'an710069China
Keywords:
MoS2 nanosheets, expanded interlayers, N-doped carbon nanotubes, Li/Na ion batteries
Cite this article:
Zhao X, Wang G, Liu X, et al. Ultrathin MoS2 with expanded interlayers supported on hierarchical polypyrrole-derived amorphous N-doped carbon tubular structures for high-performance Li/Na-ion batteries. Nano Research, 2018, 11(7): 3603-3618. https://doi.org/10.1007/s12274-017-1927-2
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Abstract Full text Electronic supplementary material About this article

Layered molybdenum disulfide (MoS2) has received much attention as one of the most promising energy-storage and conversion materials for Li/Na ion batteries. Here, a simple and effective approach is proposed for the rational design and preparation of hierarchical three-d imensional (3D) amorphous N-doped carbon nanotube@MoS2 nanosheets (3D-ANCNT@MoS2) via a simple hydrothermal method, followed by an annealing process. With such a unique nanoarchitecture, ultrathin MoS2 nanosheets grown on the external surfaces of polypyrrole-derived ANCNTs are assembled to form a hierarchical 3D nanoarchitecture, where the adopted ANCNTs serve not only as the template and continuous conductive matrix, but can also prevent MoS2 from aggregating and restacking, and help to buffer the volumetric expansion of MoS2 during cycling. More importantly, when evaluated as an anode material for lithium-ion batteries, the 3D-ANCNT@MoS2 composite exhibits excellent cycling stability, superior rate performance, and reversible specific capacity as high as 893.4 mAh·g-1 at 0.2 A·g-1 after 200 cycles in a half battery, and 669.4 mAh·g-1 at 0.2 A·g-1 after 100 cycles in the 3D-ANCNT@MoS2//LiCoO2 full battery. With respect to sodium-ion batteries, the outstanding reversible capacity, excellent rate behavior, and good cycling performance of 3D-ANCNT@MoS2 composites are also achieved.


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About this article

Ultrathin MoS2 with expanded interlayers supported on hierarchical polypyrrole-derived amorphous N-doped carbon tubular structures for high-performance Li/Na-ion batteries

Show Author's information Xiaojun Zhao1,2, Gang Wang3, Xiaojie Liu1( ), Xinliang Zheng4, Hui Wang1( )
Key Laboratory of Synthetic and Nature Functional Molecule Chemistry (Ministry of Education) DepartmentCollege of Chemistry and Materials ScienceNorthwest UniversityXi'an710127China
Department of Chemistry and Chemical EngineeringAnkang UniversityAnkang725000China
National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base)National Photoelectric Technology and Functional Materials and Application International Cooperation Base Institute of Photonics and Photon-TechnologyNorthwest UniversityXi'an710127China
School of PhysicsNorthwest UniversityXi'an710069China

Abstract

Layered molybdenum disulfide (MoS2) has received much attention as one of the most promising energy-storage and conversion materials for Li/Na ion batteries. Here, a simple and effective approach is proposed for the rational design and preparation of hierarchical three-d imensional (3D) amorphous N-doped carbon nanotube@MoS2 nanosheets (3D-ANCNT@MoS2) via a simple hydrothermal method, followed by an annealing process. With such a unique nanoarchitecture, ultrathin MoS2 nanosheets grown on the external surfaces of polypyrrole-derived ANCNTs are assembled to form a hierarchical 3D nanoarchitecture, where the adopted ANCNTs serve not only as the template and continuous conductive matrix, but can also prevent MoS2 from aggregating and restacking, and help to buffer the volumetric expansion of MoS2 during cycling. More importantly, when evaluated as an anode material for lithium-ion batteries, the 3D-ANCNT@MoS2 composite exhibits excellent cycling stability, superior rate performance, and reversible specific capacity as high as 893.4 mAh·g-1 at 0.2 A·g-1 after 200 cycles in a half battery, and 669.4 mAh·g-1 at 0.2 A·g-1 after 100 cycles in the 3D-ANCNT@MoS2//LiCoO2 full battery. With respect to sodium-ion batteries, the outstanding reversible capacity, excellent rate behavior, and good cycling performance of 3D-ANCNT@MoS2 composites are also achieved.

Keywords: MoS2 nanosheets, expanded interlayers, N-doped carbon nanotubes, Li/Na ion batteries

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Publication history
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Acknowledgements

Publication history

Received: 28 August 2017
Revised: 18 October 2017
Accepted: 20 November 2017
Published: 02 August 2018
Issue date: July 2018

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2017

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 51672213) and the Natural Science Foundation of Shaanxi Province (Nos. 2017ZDCXL-GY-08-01 and 2017JM2025).

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