Volume 16, Issue 26 2000695
Full Paper

Confinement Growth of Layered WS2 in Hollow Beaded Carbon Nanofibers with Synergistic Anchoring Effect to Reinforce Li+/Na+ Storage Performance

Huayu Wu

Huayu Wu

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 P. R. China

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Xing Chen

Xing Chen

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 P. R. China

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Chen Qian

Chen Qian

College of Chemistry and Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou, 225127 P. R. China

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Hui Yan

Corresponding Author

Hui Yan

Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA, 70504 USA

E-mail: [email protected]; [email protected]; [email protected]

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Chenyi Yan

Chenyi Yan

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 P. R. China

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Nuo Xu

Nuo Xu

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 P. R. China

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Yuanzhe Piao

Corresponding Author

Yuanzhe Piao

Graduate School of Convergence Science and Technology, Seoul National University, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16229 Republic of Korea

Advanced Institutes of Convergence Technology, Seoul National University, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16229 Republic of Korea

E-mail: [email protected]; [email protected]; [email protected]

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Guowang Diao

Guowang Diao

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 P. R. China

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Ming Chen

Corresponding Author

Ming Chen

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002 P. R. China

Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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First published: 05 June 2020
Citations: 45

Abstract

Novel nitrogen doped (N-doped) hollow beaded structural composite carbon nanofibers are successfully applied for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). Tungsten disulfide (WS2) nanosheets are confined, through synergistic anchoring, on the surface and inside of hollow beaded carbon nanofibers (HB CNFs) via a hydrothermal reaction method to construct the hierarchical structure HB WS2@CNFs. Benefiting from this unique advantage, HB WS2@CNFs exhibits remarkable lithium-storage performance in terms of high rate capability (≈351 mAh g−1 at 2 A g−1) and stable long-term cycle (≈446 mAh g−1 at 1 A g−1 after 100 cycles). Moreover, as an anode material for SIBs, HB WS2@CNFs obtains excellent long cycle life and rate performance. During the charging/discharging process, the evolution of morphology and composition of the composite are analyzed by a set of ex situ methods. This synergistic anchoring effect between WS2 nanosheets and HB CNFs is capable of effectively restraining volume expansion from the metal ions intercalation/deintercalation process and improving the cycling stability and rate performance in LIBs and SIBs.

Conflict of Interest

The authors declare no conflict of interest.

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