Novel design and synthesis of 1D bamboo-like CNTs@Sn4P3@C coaxial nanotubes for long-term sodium ion storage

Qianyu Zhang; Yuling Xu; Lifeng Qiu; Axue Liu; Rui Wang; Longhai Zhang; Chaofeng Zhang; Yan-Jie Wang; Jiujun Zhang

Green Energy & Environment (Dec 2022)

Novel design and synthesis of 1D bamboo-like CNTs@Sn4P3@C coaxial nanotubes for long-term sodium ion storage

Qianyu Zhang,
Yuling Xu,
Lifeng Qiu,
Axue Liu,
Rui Wang,
Longhai Zhang,
Chaofeng Zhang,
Yan-Jie Wang,
Jiujun Zhang

Affiliations

Qianyu Zhang: Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, China; School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China
Yuling Xu: School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
Lifeng Qiu: School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
Axue Liu: School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
Rui Wang: School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
Longhai Zhang: School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
Chaofeng Zhang: School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China; Corresponding authors.
Yan-Jie Wang: School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Corresponding authors.
Jiujun Zhang: Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai, 200444, China; Corresponding authors.

Journal volume & issue: Vol. 7, no. 6
pp. 1199 – 1205

Abstract

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In this work, a novel bamboo-like carbon nanotubes@Sn4P3@carbon (BLCNTs@Sn4P3@C) coaxial nanotubes are designed and prepared using a newly developed hydrothermal method followed by a phophidation process. The prepared Sn4P3 nanoparticles are uniformly coated and wrapped on the one-dimensional (1D) bamboo-like CNTs, which is covered by a uniform carbon layer to form a sandwich-like structure with Sn4P3 in between. The inner CNT and outer carbon can effectively maintain the structural stability and serve as the good electron conductors. Additionally, the outer carbon coating layer can effectively keep BLCNTs@Sn4P3@C nanotubes separate each other, preventing aggregation of Sn4P3 during charge/discharge when this material is used as anode for sodium ion batteries. The anode of BLCNTs@Sn4P3@C shows excellent reversible capacity and a long cycling of over 2000 cycles. The unique design of coaxial nanotubes is greatly beneficial to the electrochemical performance of Sn4P3 for sodium ion storage.

Published in Green Energy & Environment

ISSN: 2468-0257 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mechanical engineering and machinery: Renewable energy sources; Science: Biology (General): Ecology
Website: https://www.keaipublishing.com/en/journals/green-energy-and-environment/

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