Fabrication of Sb-based alloys/carbon nanofibers with uniform dispersion as anode material for high efficiency sodium storage

doi:10.1016/j.cjche.2025.03.017

Chinese Journal of Chemical Engineering ›› 2025, Vol. 83 ›› Issue (7): 208-216.DOI: 10.1016/j.cjche.2025.03.017

Fabrication of Sb-based alloys/carbon nanofibers with uniform dispersion as anode material for high efficiency sodium storage

Zhe Wang¹, Zhengpeng Zhu¹, Kai Xue¹, Xingmei Guo¹, Yuanjun Liu¹, Xiangjun Zheng¹, Qianqian Fan¹, Zhongyao Duan¹, Qinghong Kong², Junhao Zhang^1,

1 School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
2 School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China

Received:2024-11-11 Revised:2025-02-26 Accepted:2025-03-05 Online:2025-07-28 Published:2025-07-28
Contact: Qianqian Fan,E-mail:fqq@just.edu.cn;Junhao Zhang,E-mail:jhzhang6@just.edu.cn
Supported by:
The work was financially supported by National Natural Science Foundation of China (22379056, 22479065), Industry foresight and common key technology research in Carbon Peak and Carbon Neutrality Special Project from Zhenjiang city (CG2023003), Industry-University-Research Cooperation Project of Jiangsu Province (BY20230347), and the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (24KJB150008).

Fabrication of Sb-based alloys/carbon nanofibers with uniform dispersion as anode material for high efficiency sodium storage

Zhe Wang¹, Zhengpeng Zhu¹, Kai Xue¹, Xingmei Guo¹, Yuanjun Liu¹, Xiangjun Zheng¹, Qianqian Fan¹, Zhongyao Duan¹, Qinghong Kong², Junhao Zhang^1,

1 School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
2 School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China

通讯作者: Qianqian Fan,E-mail:fqq@just.edu.cn;Junhao Zhang,E-mail:jhzhang6@just.edu.cn
基金资助:
The work was financially supported by National Natural Science Foundation of China (22379056, 22479065), Industry foresight and common key technology research in Carbon Peak and Carbon Neutrality Special Project from Zhenjiang city (CG2023003), Industry-University-Research Cooperation Project of Jiangsu Province (BY20230347), and the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (24KJB150008).

Abstract

Abstract: To solve the serious volume expansion problem of Sb-based anode materials in the alloying/dealloying process, a strategy combining electrospinning and hydrogen reduction is proposed to prepare a series of Sb-based alloys/carbon nanofiber composites (SbM/CNFs, M = Co, Zn, Ni). Inactive elements are innovatively introduced to form Sb based alloys with enhanced stability. The results show that the content of SbCo nanoparticles is high to 69.12% (mass), which are uniformly dispersed in carbon fibers. When evaluated as anode material for SIBs, SbCo/CNFs anode exhibits excellent sodium storage capacity, the initial discharge capacity is 580.0 mA h·g^-1 at 0.1 A g^-1, which can hold 483.5 mA h·g^-1 after 100 cycles. Even the current density increases to 1.0 A g^-1, the specific capacity still maintains at 344.5 mA h·g^-1 after 150 cycles. The improved sodium storage capacity is attributed to the synergistic effect of conductive carbon fibers and SbCo nanoparticles with uniform dispersion, which not only provide excellent electronic conductivity, but also enhance structural stability to reduce volume change.

Key words: Electrospinning, Sb based alloy, Sodium ion batteries, Electrochemistry, Kinetics, Composites

摘要： To solve the serious volume expansion problem of Sb-based anode materials in the alloying/dealloying process, a strategy combining electrospinning and hydrogen reduction is proposed to prepare a series of Sb-based alloys/carbon nanofiber composites (SbM/CNFs, M = Co, Zn, Ni). Inactive elements are innovatively introduced to form Sb based alloys with enhanced stability. The results show that the content of SbCo nanoparticles is high to 69.12% (mass), which are uniformly dispersed in carbon fibers. When evaluated as anode material for SIBs, SbCo/CNFs anode exhibits excellent sodium storage capacity, the initial discharge capacity is 580.0 mA h·g^-1 at 0.1 A g^-1, which can hold 483.5 mA h·g^-1 after 100 cycles. Even the current density increases to 1.0 A g^-1, the specific capacity still maintains at 344.5 mA h·g^-1 after 150 cycles. The improved sodium storage capacity is attributed to the synergistic effect of conductive carbon fibers and SbCo nanoparticles with uniform dispersion, which not only provide excellent electronic conductivity, but also enhance structural stability to reduce volume change.

关键词: Electrospinning, Sb based alloy, Sodium ion batteries, Electrochemistry, Kinetics, Composites

Zhe Wang, Zhengpeng Zhu, Kai Xue, Xingmei Guo, Yuanjun Liu, Xiangjun Zheng, Qianqian Fan, Zhongyao Duan, Qinghong Kong, Junhao Zhang. Fabrication of Sb-based alloys/carbon nanofibers with uniform dispersion as anode material for high efficiency sodium storage[J]. Chinese Journal of Chemical Engineering, 2025, 83(7): 208-216.

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Fabrication of Sb-based alloys/carbon nanofibers with uniform dispersion as anode material for high efficiency sodium storage

Fabrication of Sb-based alloys/carbon nanofibers with uniform dispersion as anode material for high efficiency sodium storage

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