Facile Synthesis of Anatase TiO2 Nanospheres as Anode Materials for Sodium-Ion Batteries

Facile Synthesis of Anatase TiO2 Nanospheres as Anode Materials for Sodium-Ion Batteries Anatase TiO2 nanospheres (ATNSs) were successfully prepared through a facile solvothermal method followed by a thermal treatment. The sample was characterized by scanning electrons microscopy, transmission electron microscopy, x-ray diffraction, Raman spectrum and nitrogen adsorption techniques. When tested as an anode material for sodium-ion batteries, the electrode of ATNSs delivered a large discharge capacity of 208 mAh g−1 after 100 cycles at a current density of 50 mA g−1, indicating excellent cycling performance. This could be attributed to the uniform structure of the nanospheres with large surface area and porous nature, providing more active sites, buffering volume change, and facilitating the sodium ion intercalation as well as rapid diffusion during the charge/discharge process. Cyclic voltammetry demonstrated that the sodium storage mechanism is mainly controlled by pseudocapacitive behavior, resulting in a large capacity and outstanding cycling stability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JOM Springer Journals

Facile Synthesis of Anatase TiO2 Nanospheres as Anode Materials for Sodium-Ion Batteries

JOM , Volume 70 (8) – May 29, 2018

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Publisher
Springer Journals
Copyright
Copyright © 2018 by The Minerals, Metals & Materials Society
Subject
Engineering; Engineering, general; Chemistry/Food Science, general; Physics, general; Environment, general; Earth Sciences, general
ISSN
1047-4838
eISSN
1543-1851
D.O.I.
10.1007/s11837-018-2943-8
Publisher site
See Article on Publisher Site

Abstract

Anatase TiO2 nanospheres (ATNSs) were successfully prepared through a facile solvothermal method followed by a thermal treatment. The sample was characterized by scanning electrons microscopy, transmission electron microscopy, x-ray diffraction, Raman spectrum and nitrogen adsorption techniques. When tested as an anode material for sodium-ion batteries, the electrode of ATNSs delivered a large discharge capacity of 208 mAh g−1 after 100 cycles at a current density of 50 mA g−1, indicating excellent cycling performance. This could be attributed to the uniform structure of the nanospheres with large surface area and porous nature, providing more active sites, buffering volume change, and facilitating the sodium ion intercalation as well as rapid diffusion during the charge/discharge process. Cyclic voltammetry demonstrated that the sodium storage mechanism is mainly controlled by pseudocapacitive behavior, resulting in a large capacity and outstanding cycling stability.

Journal

JOMSpringer Journals

Published: May 29, 2018

References

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