Volume 8, Issue 3 1901356
Full Paper

Template-Free Synthesis of Hierarchical Composite Nanotubes with Superior Lithium and Sodium Storage Performance

Zunxian Yang

Zunxian Yang

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Jianhua Huang

Jianhua Huang

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Yufei Zhang

Yufei Zhang

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Bingqing Ye

Bingqing Ye

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Shimin Lin

Shimin Lin

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Jiahui Liu

Jiahui Liu

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Yuliang Ye

Yuliang Ye

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Kang Zheng

Kang Zheng

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Ganzhen Lu

Ganzhen Lu

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Tailiang Guo

Tailiang Guo

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

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Xuebin Yu

Corresponding Author

Xuebin Yu

National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350116 P. R. China

Department of Materials Science, Fudan University, Shanghai, 200433 P. R. China

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First published: 14 January 2020
Citations: 4

Abstract

2D transition metal disulfides are one of the most preferred materials for lithium-/sodium-ion batteries (LIBs). However, complex processes and structural instability during cycling are challenges faced. Herein, the hierarchical composite nanotubes CeO2@C@MoS2 (MS/CNTs) are prepared by electrostatic spinning, followed by a simple carbon coating method. The as-prepared composite nanotubes with self-assembled layer structures are characterized by a more stable structure compared with traditional nanofibers due to the existence of a dense skeleton. As a result of the stable framework structure, MS/CNTs exhibit excellent electrochemical performance in LIBs (1002 mA hg−1 at 0.1 A g−1 and 690 mA hg−1 at 1 A g−1 after 500 cycles) and super-long cyclic stability and electrochemical performance (550 mA hg−1 at 2 A g−1 after 2400 cycles). MS/CNTs also show excellent storage performance in sodium batteries (440 mA hg−1 at 0.5 A g−1, 400 mA hg−1 at 1 A g−1). The stability of MoS2 nanotubes is effectively improved by chemical and physical methods, mainly due to the support of the CeO2@C, metal–organic framework (MOF) tube skeleton, which avoids the shedding of nanotubes after cycling, maintaining a unique structural topography even after 500 cycles.

Conflict of Interest

The authors declare no conflict of interest.

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