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Heterostructured SnS/TiO2@C hollow nanospheres for superior lithium and sodium storage.
Nanoscale 2019; 11(27):12846-12852N

Abstract

Tin(ii) sulfide (SnS) is considered to be one of the most promising anode materials for lithium/sodium ion batteries (LIBs/SIBs) due to its high theoretical capacity and low-cost. However, its practical applications are severely impeded by its low electrical conductivity and large volume change upon cycling. Herein, we demonstrate a high-performance SnS/TiO2 encapsulated by a carbon shell (SnS/TiO2@C) synthesized by facile coprecipitation and annealing treatment. The exterior carbon coating can not only improve the conductivity, but also effectively relieve volume variation to maintain the structural integrity during cycling. Significantly, the internal SnS/TiO2 heterostructure formed a built-in electric field to provide favorable driving force for ion transfer. Consequently, the synthesized SnS/TiO2@C delivered a reversible capacity of 672.4 mA h g-1 at 0.5 A g-1 after 100 cycles for lithium storage and 331.2 mA h g-1 at 0.2 A g-1 after 200 cycles for sodium storage. Meanwhile, ultra-long lifespans of 3000 cycles at 5.0 A g-1 with a capacity of 394.5 mA h g-1 for LIBs and 750 cycles at 5.0 A g-1 with a capacity of 295 mA h g-1 for SIBs were achieved. The electrochemical reaction mechanisms of the SnS/TiO2@C electrode have been investigated by in situ XRD, ex situ XRD, and ex situ HRTEM. Our work may offer further understanding of the hierarchical structure to boost the electrochemical properties of the electrode materials.

Authors+Show Affiliations

College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.College of Chemistry & Environment Science, Hebei University, Baoding, 071002, P. R. China.College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China. danli@zzu.edu.cn zhjm@zzu.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31265048

Citation

Zhang, Yan, et al. "Heterostructured SnS/TiO2@C Hollow Nanospheres for Superior Lithium and Sodium Storage." Nanoscale, vol. 11, no. 27, 2019, pp. 12846-12852.
Zhang Y, Su H, Wang C, et al. Heterostructured SnS/TiO2@C hollow nanospheres for superior lithium and sodium storage. Nanoscale. 2019;11(27):12846-12852.
Zhang, Y., Su, H., Wang, C., Yang, D., Li, Y., Zhang, W., ... Li, D. (2019). Heterostructured SnS/TiO2@C hollow nanospheres for superior lithium and sodium storage. Nanoscale, 11(27), pp. 12846-12852. doi:10.1039/c9nr04015c.
Zhang Y, et al. Heterostructured SnS/TiO2@C Hollow Nanospheres for Superior Lithium and Sodium Storage. Nanoscale. 2019 Jul 21;11(27):12846-12852. PubMed PMID: 31265048.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heterostructured SnS/TiO2@C hollow nanospheres for superior lithium and sodium storage. AU - Zhang,Yan, AU - Su,Hang, AU - Wang,Canpei, AU - Yang,Dingcheng, AU - Li,Yongsheng, AU - Zhang,Wenbo, AU - Wang,Hongqiang, AU - Zhang,Jianmin, AU - Li,Dan, Y1 - 2019/07/02/ PY - 2019/7/3/pubmed PY - 2019/7/3/medline PY - 2019/7/3/entrez SP - 12846 EP - 12852 JF - Nanoscale JO - Nanoscale VL - 11 IS - 27 N2 - Tin(ii) sulfide (SnS) is considered to be one of the most promising anode materials for lithium/sodium ion batteries (LIBs/SIBs) due to its high theoretical capacity and low-cost. However, its practical applications are severely impeded by its low electrical conductivity and large volume change upon cycling. Herein, we demonstrate a high-performance SnS/TiO2 encapsulated by a carbon shell (SnS/TiO2@C) synthesized by facile coprecipitation and annealing treatment. The exterior carbon coating can not only improve the conductivity, but also effectively relieve volume variation to maintain the structural integrity during cycling. Significantly, the internal SnS/TiO2 heterostructure formed a built-in electric field to provide favorable driving force for ion transfer. Consequently, the synthesized SnS/TiO2@C delivered a reversible capacity of 672.4 mA h g-1 at 0.5 A g-1 after 100 cycles for lithium storage and 331.2 mA h g-1 at 0.2 A g-1 after 200 cycles for sodium storage. Meanwhile, ultra-long lifespans of 3000 cycles at 5.0 A g-1 with a capacity of 394.5 mA h g-1 for LIBs and 750 cycles at 5.0 A g-1 with a capacity of 295 mA h g-1 for SIBs were achieved. The electrochemical reaction mechanisms of the SnS/TiO2@C electrode have been investigated by in situ XRD, ex situ XRD, and ex situ HRTEM. Our work may offer further understanding of the hierarchical structure to boost the electrochemical properties of the electrode materials. SN - 2040-3372 UR - https://www.unboundmedicine.com/medline/citation/31265048/Heterostructured_SnS/TiO2@C_hollow_nanospheres_for_superior_lithium_and_sodium_storage_ L2 - https://doi.org/10.1039/c9nr04015c DB - PRIME DP - Unbound Medicine ER -