SnSe2 Nanoparticles Chemically Embedded in a Carbon Shell for High-Rate Sodium-Ion Storage

Fen Zhang; Yu Shen; Meng Shao; Yongcai Zhang; Bing Zheng; Jiansheng Wu; Weina Zhang; Aiping Zhu; Fengwei Huo; Sheng Li

doi:10.1021/acsami.9b16659

SnSe₂ Nanoparticles Chemically Embedded in a Carbon Shell for High-Rate Sodium-Ion Storage

Fen Zhang, Yu Shen, Meng Shao, Yongcai Zhang, Bing Zheng, Jiansheng Wu, Weina Zhang, Aiping Zhu, Fengwei Huo, Sheng Li

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

Research output: Contribution to journal › Article › peer-review

100 Scopus citations

Abstract

The development of advanced anode materials is crucial to enhance the performance of sodium-ion batteries (SIBs). In this study, SnSe₂ nanoparticles chemically embedded in a carbon shell (SnSe₂@C) were fabricated from Sn-organic frameworks and evaluated as an anode material for SIBs. The structural characterization demonstrated that there existed C-Sn chemical bonds between the SnSe₂ nanoparticles and carbon shell, which could strongly anchor SnSe₂ nanoparticles to the carbon shell. Such a structure can not only facilitate charge transfer but also ensure the structural stability of the SnSe₂@C electrode. In addition, the carbon shell also helped in the dispersion of SnSe₂ nanoparticles, thus offering more redox-active sites for Na⁺ storage. The as-prepared SnSe₂@C nanocomposite could deliver good cycling stability and a superior rate capability of 324 mA h g^-1 at 2 A g^-1 for SIBs.

Original language	English
Pages (from-to)	2346-2353
Number of pages	8
Journal	ACS Applied Materials and Interfaces
Volume	12
Issue number	2
DOIs	https://doi.org/10.1021/acsami.9b16659
State	Published - 15 Jan 2020

Keywords

C-Sn bonds
SnSe
anode materials
carbon shell
high-rate performance
sodium-ion battery

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title = "SnSe2 Nanoparticles Chemically Embedded in a Carbon Shell for High-Rate Sodium-Ion Storage",

abstract = "The development of advanced anode materials is crucial to enhance the performance of sodium-ion batteries (SIBs). In this study, SnSe2 nanoparticles chemically embedded in a carbon shell (SnSe2@C) were fabricated from Sn-organic frameworks and evaluated as an anode material for SIBs. The structural characterization demonstrated that there existed C-Sn chemical bonds between the SnSe2 nanoparticles and carbon shell, which could strongly anchor SnSe2 nanoparticles to the carbon shell. Such a structure can not only facilitate charge transfer but also ensure the structural stability of the SnSe2@C electrode. In addition, the carbon shell also helped in the dispersion of SnSe2 nanoparticles, thus offering more redox-active sites for Na+ storage. The as-prepared SnSe2@C nanocomposite could deliver good cycling stability and a superior rate capability of 324 mA h g-1 at 2 A g-1 for SIBs.",

keywords = "C-Sn bonds, SnSe, anode materials, carbon shell, high-rate performance, sodium-ion battery",

author = "Fen Zhang and Yu Shen and Meng Shao and Yongcai Zhang and Bing Zheng and Jiansheng Wu and Weina Zhang and Aiping Zhu and Fengwei Huo and Sheng Li",

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year = "2020",

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doi = "10.1021/acsami.9b16659",

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T1 - SnSe2 Nanoparticles Chemically Embedded in a Carbon Shell for High-Rate Sodium-Ion Storage

AU - Zhang, Fen

AU - Shen, Yu

AU - Shao, Meng

AU - Zhang, Yongcai

AU - Zheng, Bing

AU - Wu, Jiansheng

AU - Zhang, Weina

AU - Zhu, Aiping

AU - Huo, Fengwei

AU - Li, Sheng

PY - 2020/1/15

Y1 - 2020/1/15

N2 - The development of advanced anode materials is crucial to enhance the performance of sodium-ion batteries (SIBs). In this study, SnSe2 nanoparticles chemically embedded in a carbon shell (SnSe2@C) were fabricated from Sn-organic frameworks and evaluated as an anode material for SIBs. The structural characterization demonstrated that there existed C-Sn chemical bonds between the SnSe2 nanoparticles and carbon shell, which could strongly anchor SnSe2 nanoparticles to the carbon shell. Such a structure can not only facilitate charge transfer but also ensure the structural stability of the SnSe2@C electrode. In addition, the carbon shell also helped in the dispersion of SnSe2 nanoparticles, thus offering more redox-active sites for Na+ storage. The as-prepared SnSe2@C nanocomposite could deliver good cycling stability and a superior rate capability of 324 mA h g-1 at 2 A g-1 for SIBs.

AB - The development of advanced anode materials is crucial to enhance the performance of sodium-ion batteries (SIBs). In this study, SnSe2 nanoparticles chemically embedded in a carbon shell (SnSe2@C) were fabricated from Sn-organic frameworks and evaluated as an anode material for SIBs. The structural characterization demonstrated that there existed C-Sn chemical bonds between the SnSe2 nanoparticles and carbon shell, which could strongly anchor SnSe2 nanoparticles to the carbon shell. Such a structure can not only facilitate charge transfer but also ensure the structural stability of the SnSe2@C electrode. In addition, the carbon shell also helped in the dispersion of SnSe2 nanoparticles, thus offering more redox-active sites for Na+ storage. The as-prepared SnSe2@C nanocomposite could deliver good cycling stability and a superior rate capability of 324 mA h g-1 at 2 A g-1 for SIBs.

KW - C-Sn bonds

KW - SnSe

KW - anode materials

KW - carbon shell

KW - high-rate performance

KW - sodium-ion battery

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SN - 1944-8244

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JF - ACS Applied Materials and Interfaces

IS - 2

ER -

SnSe₂ Nanoparticles Chemically Embedded in a Carbon Shell for High-Rate Sodium-Ion Storage

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Keywords

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