What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?

We have found that anodized amorphous TiO2 nanotubes can be transformed into rutile phase TiO2, resulting in the formation of a flower-like structure, when soaked in H3PO4 solution at room temperature for 2–4 days. The presence of PO43− ions in the soaking solution is believed to play a key role in...

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Main Authors:	Lizhen Wu, Chen Li, Ye Song, Kun Zhang, Jiajun Zhang, Puying Li, Xufei Zhu
Format:	Article
Language:	English
Published:	Elsevier 2019-08-01
Series:	Electrochemistry Communications
Online Access:	http://www.sciencedirect.com/science/article/pii/S138824811930164X

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spelling	doaj-40f780eda403435192233961b4bc8ec62020-11-24T21:30:42ZengElsevierElectrochemistry Communications1388-24812019-08-01105What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?Lizhen Wu0Chen Li1Ye Song2Kun Zhang3Jiajun Zhang4Puying Li5Xufei Zhu6Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, ChinaKey Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, ChinaCorresponding author.; Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, ChinaKey Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, ChinaKey Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, ChinaKey Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, ChinaKey Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, ChinaWe have found that anodized amorphous TiO2 nanotubes can be transformed into rutile phase TiO2, resulting in the formation of a flower-like structure, when soaked in H3PO4 solution at room temperature for 2–4 days. The presence of PO43− ions in the soaking solution is believed to play a key role in the formation of the flower-like TiO2 structure. The resulting TiO2 flower-like material can be used as a binder-free electrode and exhibits obvious redox activity in AlCl3 solution and superior supercapacitive performance compared to conventional TiO2 nanotubes. The presented technique offers a simple, scalable, energy-saving, and cost-effective way to tailor the morphology and properties of anodized TiO2 nanotubes for different applications. Keywords: TiO2 nanotubes, H3PO4 soaking, Flower-like structure, Dissolution-recrystallization, Supercapacitorshttp://www.sciencedirect.com/science/article/pii/S138824811930164X
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Lizhen Wu Chen Li Ye Song Kun Zhang Jiajun Zhang Puying Li Xufei Zhu
spellingShingle	Lizhen Wu Chen Li Ye Song Kun Zhang Jiajun Zhang Puying Li Xufei Zhu What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time? Electrochemistry Communications
author_facet	Lizhen Wu Chen Li Ye Song Kun Zhang Jiajun Zhang Puying Li Xufei Zhu
author_sort	Lizhen Wu
title	What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?
title_short	What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?
title_full	What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?
title_fullStr	What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?
title_full_unstemmed	What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?
title_sort	what happens if anodic tio2 nanotubes are soaked in h3po4 at room temperature for a long time?
publisher	Elsevier
series	Electrochemistry Communications
issn	1388-2481
publishDate	2019-08-01
description	We have found that anodized amorphous TiO2 nanotubes can be transformed into rutile phase TiO2, resulting in the formation of a flower-like structure, when soaked in H3PO4 solution at room temperature for 2–4 days. The presence of PO43− ions in the soaking solution is believed to play a key role in the formation of the flower-like TiO2 structure. The resulting TiO2 flower-like material can be used as a binder-free electrode and exhibits obvious redox activity in AlCl3 solution and superior supercapacitive performance compared to conventional TiO2 nanotubes. The presented technique offers a simple, scalable, energy-saving, and cost-effective way to tailor the morphology and properties of anodized TiO2 nanotubes for different applications. Keywords: TiO2 nanotubes, H3PO4 soaking, Flower-like structure, Dissolution-recrystallization, Supercapacitors
url	http://www.sciencedirect.com/science/article/pii/S138824811930164X
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What happens if anodic TiO2 nanotubes are soaked in H3PO4 at room temperature for a long time?

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