Hierarchical bicomponent TiO2 hollow spheres as a new high-capacity anode material for lithium-ion batteries

Ruiping Liu; Chao Shen; Chao Zhang; James Iocozzia; Qi Wang; Shiqiang Zhao; Kunjie Yuan; Zhiqun Lin

doi:10.1007/s10853-018-2195-6

Hierarchical bicomponent TiO₂ hollow spheres as a new high-capacity anode material for lithium-ion batteries

Ruiping Liu, Chao Shen, Chao Zhang, James Iocozzia, Qi Wang, Shiqiang Zhao, Kunjie Yuan, Zhiqun Lin

Department of Chemistry & Nanoscience

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

13 Scopus citations

Abstract

Hierarchical TiO₂-based hollow spheres were successfully synthesized via a hydrothermal method using FeSO₄·7H₂O, CoSO₄·7H₂O and ZnSO₄·7H₂O as soft templates. The as-prepared hollow spheres are well dispersed with the diameters of 2–4 μm. The shell and the interior surface of the spheres are composed of loosely packed grains, which provide a large specific surface area to facilitate lithium-ion diffusion processes. Among the three types of hybrid hollow spheres, TiO₂/Fe₂O₃ shows the highest reversible capacity and best cycling stability (discharge capacities of 290.8 and 210.5 mAh/g were achieved after 100 cycles at 0.1C and 1C, respectively) and rate performance (from 461.1 mAh/g at 0.1C to 79.3 mAh/g at 5C with recovery to 288.6 mAh/g at 0.1C) for anode materials in lithium-ion batteries.

Original language	English
Pages (from-to)	8499-8509
Number of pages	11
Journal	Journal of Materials Science
Volume	53
Issue number	11
DOIs	https://doi.org/10.1007/s10853-018-2195-6
State	Published - 1 Jun 2018

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Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.

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Cite this

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title = "Hierarchical bicomponent TiO2 hollow spheres as a new high-capacity anode material for lithium-ion batteries",

abstract = "Hierarchical TiO2-based hollow spheres were successfully synthesized via a hydrothermal method using FeSO4·7H2O, CoSO4·7H2O and ZnSO4·7H2O as soft templates. The as-prepared hollow spheres are well dispersed with the diameters of 2–4 μm. The shell and the interior surface of the spheres are composed of loosely packed grains, which provide a large specific surface area to facilitate lithium-ion diffusion processes. Among the three types of hybrid hollow spheres, TiO2/Fe2O3 shows the highest reversible capacity and best cycling stability (discharge capacities of 290.8 and 210.5 mAh/g were achieved after 100 cycles at 0.1C and 1C, respectively) and rate performance (from 461.1 mAh/g at 0.1C to 79.3 mAh/g at 5C with recovery to 288.6 mAh/g at 0.1C) for anode materials in lithium-ion batteries.",

author = "Ruiping Liu and Chao Shen and Chao Zhang and James Iocozzia and Qi Wang and Shiqiang Zhao and Kunjie Yuan and Zhiqun Lin",

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AU - Liu, Ruiping

AU - Shen, Chao

AU - Zhang, Chao

AU - Iocozzia, James

AU - Wang, Qi

AU - Zhao, Shiqiang

AU - Yuan, Kunjie

AU - Lin, Zhiqun

PY - 2018/6/1

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AB - Hierarchical TiO2-based hollow spheres were successfully synthesized via a hydrothermal method using FeSO4·7H2O, CoSO4·7H2O and ZnSO4·7H2O as soft templates. The as-prepared hollow spheres are well dispersed with the diameters of 2–4 μm. The shell and the interior surface of the spheres are composed of loosely packed grains, which provide a large specific surface area to facilitate lithium-ion diffusion processes. Among the three types of hybrid hollow spheres, TiO2/Fe2O3 shows the highest reversible capacity and best cycling stability (discharge capacities of 290.8 and 210.5 mAh/g were achieved after 100 cycles at 0.1C and 1C, respectively) and rate performance (from 461.1 mAh/g at 0.1C to 79.3 mAh/g at 5C with recovery to 288.6 mAh/g at 0.1C) for anode materials in lithium-ion batteries.

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