Sulfur-doped TiO2 anchored on a large-area carbon sheet as a high-performance anode for sodium-ion battery

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Accepted version
Date
2019-11-01
Authors
Zhang, Yan
He, Xinrui
Tang, Jiahui
Jiang, Jing
Ji, Xiaobo
Wang, Chao
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American Chemical Society
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Abstract
Well-tailored sulfur-doped anatase titanium dioxide nanoparticles anchored on a large-area carbon sheet are designed, where the in situ sulfur-doped titanium dioxide directly comes from titanium oxysulfate and the large-area carbon sheet is derived from glucose. When applied as an anode material for sodium-ion batteries, it exhibits an excellent electrochemical performance including a high capacity [256.4 mA h gā€“1 at 2 C (1 C = 335 mA h gā€“1) after 500 cycles] and a remarkable rate of cycling stability (100.5 mA h gā€“1 at 30 C after 500 cycles). These outstanding sodium storage behaviors are ascribed to the nanosized particles (about 8ā€“12 nm), good electronic conductivity promoted by the incorporation of carbon sheet and sulfur, as well as the unique chemical bond based on the electrostatic interaction.
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Keywords
Sodium-ion battery , Anode , Titanium dioxide , Sulfur doped , Carbon sheets , Electrochemical performance , Pseudocapacitance behavior
Citation
Zhang, Y., He, X., Tang, J., Jiang, J., Ji, X. and Wang, C. (2019) 'Sulfur-Doped TiO2 Anchored on a Large-Area Carbon Sheet as a High-Performance Anode for Sodium-Ion Battery', ACS Applied Materials & Interfaces, 11(47), pp. 44170-44178.
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Ā© 2019 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright Ā© American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/pdf/10.1021/acsami.9b14597