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TiO2 Nanotubes Array on Carbon Cloth as a Flexibility Anode for Sodium-Ion Batteries

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In this work, three-dimensional (3D) TiO2 nanotubes (NTs) on carbon cloth (CC) (TiO2 NTs/CC) were synthesized by a method involving formation of a [email protected]2 nanorod (NRs) on CC ([email protected]2 NRs/CC) structure and a subsequent chemical etching process for ZnO NRs template. The 3D TiO2 NTs/CC were applied as flexible anodes for sodium ion batteries (SIBs). The TiO2 NTs/CC yielded high specific capacity and good cycling stability, superior to that of some reported TiO2 nanocomposites. The TiO2 NTs/CC delivered a reversible capacity of 260 mA·h·g−1 and 85.1% capacity retention over 150 cycles at current density of 0.25 C (1 C = 335 mA·g−1). It also exhibited high rate capacity of 200 mA·h·g−1 at 0.5 C. Even at a high rate of 1.0 C, the TiO2 NTs/CC can still maintain a high capacity of 100 mA·h·g−1. Moreover, it was observed that the electrochemical performance for the TiO2 NTs/CC was much better than that (150 mA·h·g−1 for up to 150 cycles) of a solid TiO2 NRs/CC counterpart, which also demonstrated the capacity enhancement and good cycling stability.
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Keywords: Nanotubes Structure; Rate Performance; Sodium-Ion Battery (SIBs); TiO2 NTs/CC

Document Type: Research Article

Affiliations: 1: College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, P. R. China 2: Institute for Sustainable Energy, College of Science, Shanghai University, Shanghai 200444, P. R. China 3: College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, P. R. China 4: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Research Center for Analysis and Measurement, Donghua University, Shanghai, 201620, P. R. China

Publication date: January 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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