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 JOM https://doi.org/10.1007/s11837-018-2943-8 2018 The Minerals, Metals & Materials Society ADVANCED MATERIALS FOR ENERGY STORAGE AND CONVERSION APPLICATIONS Facile Synthesis of Anatase TiO Nanospheres as Anode Materials for Sodium-Ion Batteries 1,2 1,2,3 1,2 SENSEN ZHANG, YING LI, and MIN LI 1.—School of Metallurgy, Northeastern University, Shenyang 110819, China. 2.—Liaoning Key Laboratory for Metallurgical Sensors and Technology, Shenyang 110819, China. 3.—e-mail: liying@mail.neu.edu.cn Anatase TiO 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 mi- croscopy, x-ray diffraction, Raman spectrum and nitrogen adsorption tech- niques. When tested as an anode material for sodium-ion batteries, the electrode of ATNSs delivered a large discharge capacity of 208 mAh g after 100 cycles at a current density of 50 mA g , indicating excellent cycling performance. This could be attributed to the uniform structure of the nano- spheres 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 voltam- metry demonstrated that the sodium storage mechanism is mainly controlled by pseudocapacitive behavior, resulting in a large capacity and outstanding 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 OnlineFirst – May 29, 2018
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Publisher
Springer US
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

JOM https://doi.org/10.1007/s11837-018-2943-8 2018 The Minerals, Metals & Materials Society ADVANCED MATERIALS FOR ENERGY STORAGE AND CONVERSION APPLICATIONS Facile Synthesis of Anatase TiO Nanospheres as Anode Materials for Sodium-Ion Batteries 1,2 1,2,3 1,2 SENSEN ZHANG, YING LI, and MIN LI 1.—School of Metallurgy, Northeastern University, Shenyang 110819, China. 2.—Liaoning Key Laboratory for Metallurgical Sensors and Technology, Shenyang 110819, China. 3.—e-mail: liying@mail.neu.edu.cn Anatase TiO 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 mi- croscopy, x-ray diffraction, Raman spectrum and nitrogen adsorption tech- niques. When tested as an anode material for sodium-ion batteries, the electrode of ATNSs delivered a large discharge capacity of 208 mAh g after 100 cycles at a current density of 50 mA g , indicating excellent cycling performance. This could be attributed to the uniform structure of the nano- spheres 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 voltam- metry demonstrated that the sodium storage mechanism is mainly controlled by pseudocapacitive behavior, resulting in a large capacity and outstanding

Journal

JOMSpringer Journals

Published: May 29, 2018

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