Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method

Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method

The formation of crystalline anatase films having important applications such as photocatalysis, solar cells, electrochromic applications, and bio-implants requires time-consuming multiple processes including heat treatments. In this paper, ultra-rapid formation of a crystalline anatase film on a ti...

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Main Authors: Yuki Sato, Hikaru Kobayashi, Damian Kowalski, Akira Koyama, Chunyu Zhu, Yoshitaka Aoki, Mikito Suto, Hiroki Habazaki
Format: Article
Language:English
Published: Elsevier 2019-11-01
Series:Electrochemistry Communications
Online Access:http://www.sciencedirect.com/science/article/pii/S1388248119302243
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spelling doaj-fe2ecf4b067c4b0bae852a11bfec8c7c2020-11-25T01:31:27ZengElsevierElectrochemistry Communications1388-24812019-11-01108Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition methodYuki Sato0Hikaru Kobayashi1Damian Kowalski2Akira Koyama3Chunyu Zhu4Yoshitaka Aoki5Mikito Suto6Hiroki Habazaki7Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, JapanGraduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, JapanDivision of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, JapanDivision of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, JapanDivision of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, JapanDivision of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, JapanSteel Research Laboratory, JFE Steel Corporation, 1, Kawasaki-cho, Chuo-ku, Chiba 260-0835, JapanDivision of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan; Corresponding author.The formation of crystalline anatase films having important applications such as photocatalysis, solar cells, electrochromic applications, and bio-implants requires time-consuming multiple processes including heat treatments. In this paper, ultra-rapid formation of a crystalline anatase film on a tin substrate is realized by a cathodic deposition method, which is performed only for 3 s in an aqueous solution containing TiF62− at 60 °C without any heat treatment. The deposited nanocrystalline anatase film of ~90 nm thickness contains high concentration of tin species derived from the substrate metal and shows superhydrophilicity after UV light irradiation. The process utilized in this study provides a novel annealing-free approach for the rapid formation of a photoactive crystalline anatase film on heat-labile substrates. Keywords: Cathodic deposition, Anatase, Heat-labile substrate, Doped TiO2http://www.sciencedirect.com/science/article/pii/S1388248119302243
collection DOAJ
language English
format Article
sources DOAJ
author Yuki Sato
Hikaru Kobayashi
Damian Kowalski
Akira Koyama
Chunyu Zhu
Yoshitaka Aoki
Mikito Suto
Hiroki Habazaki
spellingShingle Yuki Sato
Hikaru Kobayashi
Damian Kowalski
Akira Koyama
Chunyu Zhu
Yoshitaka Aoki
Mikito Suto
Hiroki Habazaki
Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method
Electrochemistry Communications
author_facet Yuki Sato
Hikaru Kobayashi
Damian Kowalski
Akira Koyama
Chunyu Zhu
Yoshitaka Aoki
Mikito Suto
Hiroki Habazaki
author_sort Yuki Sato
title Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method
title_short Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method
title_full Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method
title_fullStr Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method
title_full_unstemmed Ultra-rapid formation of crystalline anatase TiO2 films highly doped with substrate species by a cathodic deposition method
title_sort ultra-rapid formation of crystalline anatase tio2 films highly doped with substrate species by a cathodic deposition method
publisher Elsevier
series Electrochemistry Communications
issn 1388-2481
publishDate 2019-11-01
description The formation of crystalline anatase films having important applications such as photocatalysis, solar cells, electrochromic applications, and bio-implants requires time-consuming multiple processes including heat treatments. In this paper, ultra-rapid formation of a crystalline anatase film on a tin substrate is realized by a cathodic deposition method, which is performed only for 3 s in an aqueous solution containing TiF62− at 60 °C without any heat treatment. The deposited nanocrystalline anatase film of ~90 nm thickness contains high concentration of tin species derived from the substrate metal and shows superhydrophilicity after UV light irradiation. The process utilized in this study provides a novel annealing-free approach for the rapid formation of a photoactive crystalline anatase film on heat-labile substrates. Keywords: Cathodic deposition, Anatase, Heat-labile substrate, Doped TiO2
url http://www.sciencedirect.com/science/article/pii/S1388248119302243
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