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Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances

Nanoscale engineering of regular structured materials is immensely demanded in various scientific areas. In this work, vertically oriented TiO(2) nanotube arrays were grown by self-organizing electrochemical anodization. The effects of different fluoride ion concentrations (0.2 and 0.5 wt% NH(4)F) a...

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Autores principales: Cao, Wangzhu, Chen, Kunfeng, Xue, Dongfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865863/
https://www.ncbi.nlm.nih.gov/pubmed/33494325
http://dx.doi.org/10.3390/ma14030510
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author Cao, Wangzhu
Chen, Kunfeng
Xue, Dongfeng
author_facet Cao, Wangzhu
Chen, Kunfeng
Xue, Dongfeng
author_sort Cao, Wangzhu
collection PubMed
description Nanoscale engineering of regular structured materials is immensely demanded in various scientific areas. In this work, vertically oriented TiO(2) nanotube arrays were grown by self-organizing electrochemical anodization. The effects of different fluoride ion concentrations (0.2 and 0.5 wt% NH(4)F) and different anodization times (2, 5, 10 and 20 h) on the morphology of nanotubes were systematically studied in an organic electrolyte (glycol). The growth mechanisms of amorphous and anatase TiO(2) nanotubes were also studied. Under optimized conditions, we obtained TiO(2) nanotubes with tube diameters of 70–160 nm and tube lengths of 6.5–45 μm. Serving as free-standing and binder-free electrodes, the kinetic, capacity, and stability performances of TiO(2) nanotubes were tested as lithium-ion battery anodes. This work provides a facile strategy for constructing self-organized materials with optimized functionalities for applications.
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spelling pubmed-78658632021-02-07 Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances Cao, Wangzhu Chen, Kunfeng Xue, Dongfeng Materials (Basel) Article Nanoscale engineering of regular structured materials is immensely demanded in various scientific areas. In this work, vertically oriented TiO(2) nanotube arrays were grown by self-organizing electrochemical anodization. The effects of different fluoride ion concentrations (0.2 and 0.5 wt% NH(4)F) and different anodization times (2, 5, 10 and 20 h) on the morphology of nanotubes were systematically studied in an organic electrolyte (glycol). The growth mechanisms of amorphous and anatase TiO(2) nanotubes were also studied. Under optimized conditions, we obtained TiO(2) nanotubes with tube diameters of 70–160 nm and tube lengths of 6.5–45 μm. Serving as free-standing and binder-free electrodes, the kinetic, capacity, and stability performances of TiO(2) nanotubes were tested as lithium-ion battery anodes. This work provides a facile strategy for constructing self-organized materials with optimized functionalities for applications. MDPI 2021-01-21 /pmc/articles/PMC7865863/ /pubmed/33494325 http://dx.doi.org/10.3390/ma14030510 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cao, Wangzhu
Chen, Kunfeng
Xue, Dongfeng
Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances
title Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances
title_full Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances
title_fullStr Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances
title_full_unstemmed Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances
title_short Highly Ordered TiO(2) Nanotube Arrays with Engineered Electrochemical Energy Storage Performances
title_sort highly ordered tio(2) nanotube arrays with engineered electrochemical energy storage performances
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865863/
https://www.ncbi.nlm.nih.gov/pubmed/33494325
http://dx.doi.org/10.3390/ma14030510
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AT xuedongfeng highlyorderedtio2nanotubearrayswithengineeredelectrochemicalenergystorageperformances