Volume 18, Issue 3 2104293
Research Article

Interfacial Covalent Bonding Endowing Ti3C2-Sb2S3 Composites High Sodium Storage Performance

Hui Wang

Hui Wang

Key Laboratory for Mineral Materials & Application of Hunan Province, School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083 China

Shanghai IC R&D Center, Shanghai, 201210 China

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Xiaolan Song

Xiaolan Song

Key Laboratory for Mineral Materials & Application of Hunan Province, School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083 China

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Miao Lv

Miao Lv

Key Laboratory for Mineral Materials & Application of Hunan Province, School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083 China

Shanghai IC R&D Center, Shanghai, 201210 China

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Shengming Jin

Shengming Jin

Key Laboratory for Mineral Materials & Application of Hunan Province, School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083 China

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Jianlong Xu

Jianlong Xu

Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123 China

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Xiaodong Kong

Xiaodong Kong

Institute of Materials for Energy and Environment, Qingdao University, Qingdao, 266071 China

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Xingyun Li

Xingyun Li

BTR New Material Group Co., Ltd., Shenzhen, 518106 China

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Zhiliang Liu

Zhiliang Liu

Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001 China

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Xinghua Chang

Corresponding Author

Xinghua Chang

Key Laboratory for Mineral Materials & Application of Hunan Province, School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083 China

E-mail: [email protected]

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Wei Sun

Wei Sun

Key Laboratory for Mineral Materials & Application of Hunan Province, School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083 China

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Jie Zheng

Jie Zheng

Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 China

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Xingguo Li

Xingguo Li

Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 China

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First published: 05 November 2021
Citations: 28

Abstract

Antimony sulfide is attracting enormous attention due to its remarkable theoretical capacity as anode for sodium-ion batteries (SIBs). However, it still suffers from poor structural stability and sluggish reaction kinetics. Constructing covalent chemical linkage to anchor antimony sulfide on two-dimension conductive materials is an effective strategy to conquer the challenges. Herein, Ti3C2-Sb2S3 composites are successfully achieved with monodispersed Sb2S3 uniformly pinned on the surface of Ti3C2Tx MXene through covalent bonding of Ti-O-Sb and S-Ti. Ti3C2Tx MXene serves as both charge storage contributor and flexible conductive buffer to sustain the structural integrity of the electrode. Systematic analysis indicates that construction of efficient interfacial chemical linkage could bridge the physical gap between Sb2S3 nanoparticles and Ti3C2Tx MXene, thus promoting the interfacial charge transfer efficiency. Furthermore, the interfacial covalent bonding could also effectively confine Sb2S3 nanoparticles and the corresponding reduced products on the surface of Ti3C2Tx MXene. Benefited from the unique structure, Ti3C2-Sb2S3 anode delivers a high reversible capacity of 475 mAh g−1 at 0.2 A g−1 after 300 cycles, even retaining 410 mAh g−1 at 1.0 A g−1 after 500 cycles. This strategy is expected to shed more light on interfacial chemical linkage towards rational design of advanced materials for SIBs.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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