Formation of self ordered TiO2 nanotubes by electrochemical anodization of titanium in 2-propanol / NH4F

F. M.Bayoumi Hassan; Hiroshi Nanjo; Hiroyuki Tetsuka; Mitsuhiro Kanakubo; Takafumi Aizawa; Masateru Nishioka; Takeo Ebina

doi:10.1149/1.3115520

Formation of self ordered TiO₂ nanotubes by electrochemical anodization of titanium in 2-propanol / NH₄F

F. M.Bayoumi Hassan, Hiroshi Nanjo, Hiroyuki Tetsuka, Mitsuhiro Kanakubo, Takafumi Aizawa, Masateru Nishioka, Takeo Ebina

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

In the present work we report that TiO₂ nanotubes (TiNT) can be formed by electrochemical anodization of titanium in an 2-propanol/water + 0.14 M NH₄F. The effects of water contents, time of anodization and the potential on the growth behavior of the TiNT were studied. The optimum solvent composition of water / 2-propanol was found 16 vol% water. At this % the reaction between solvated electrons and hydrogen ions, which was considered as a possible rate-determining step, is kinetically controlled. The titania nanotubes obtained under the optimum conditions have heights up to 1800 nm and inner diameters around 90 nm. Increasing the potential beyond 20 V did not show better nanotubes. This was attributed to the fast reactions under the high field led to disordering equilibrium of the controlling reactions.

Original language	English
Title of host publication	ECS Transactions - Nanotechnology - General - 214th ECS Meeting/PRiME 2008
Pages	35-47
Number of pages	13
Edition	25
DOIs	https://doi.org/10.1149/1.3115520
Publication status	Published - 2009
Externally published	Yes
Event	Nanotechnology - General - 214th ECS Meeting/PRiME 2008 - Honolulu, HI, United States Duration: Oct 12 2008 → Oct 17 2008

Publication series

Name	ECS Transactions
Number	25
Volume	16
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	Nanotechnology - General - 214th ECS Meeting/PRiME 2008
Country/Territory	United States
City	Honolulu, HI
Period	10/12/08 → 10/17/08

ASJC Scopus subject areas

General Engineering

Access to Document

10.1149/1.3115520

Cite this

Hassan, F. M. B., Nanjo, H., Tetsuka, H., Kanakubo, M., Aizawa, T., Nishioka, M., & Ebina, T. (2009). Formation of self ordered TiO₂ nanotubes by electrochemical anodization of titanium in 2-propanol / NH₄F. In ECS Transactions - Nanotechnology - General - 214th ECS Meeting/PRiME 2008 (25 ed., pp. 35-47). (ECS Transactions; Vol. 16, No. 25). https://doi.org/10.1149/1.3115520

Formation of self ordered TiO₂ nanotubes by electrochemical anodization of titanium in 2-propanol / NH₄F. / Hassan, F. M.Bayoumi; Nanjo, Hiroshi; Tetsuka, Hiroyuki et al.
ECS Transactions - Nanotechnology - General - 214th ECS Meeting/PRiME 2008. 25. ed. 2009. p. 35-47 (ECS Transactions; Vol. 16, No. 25).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hassan, FMB, Nanjo, H, Tetsuka, H, Kanakubo, M, Aizawa, T, Nishioka, M & Ebina, T 2009, Formation of self ordered TiO₂ nanotubes by electrochemical anodization of titanium in 2-propanol / NH₄F. in ECS Transactions - Nanotechnology - General - 214th ECS Meeting/PRiME 2008. 25 edn, ECS Transactions, no. 25, vol. 16, pp. 35-47, Nanotechnology - General - 214th ECS Meeting/PRiME 2008, Honolulu, HI, United States, 10/12/08. https://doi.org/10.1149/1.3115520

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abstract = "In the present work we report that TiO2 nanotubes (TiNT) can be formed by electrochemical anodization of titanium in an 2-propanol/water + 0.14 M NH4F. The effects of water contents, time of anodization and the potential on the growth behavior of the TiNT were studied. The optimum solvent composition of water / 2-propanol was found 16 vol% water. At this % the reaction between solvated electrons and hydrogen ions, which was considered as a possible rate-determining step, is kinetically controlled. The titania nanotubes obtained under the optimum conditions have heights up to 1800 nm and inner diameters around 90 nm. Increasing the potential beyond 20 V did not show better nanotubes. This was attributed to the fast reactions under the high field led to disordering equilibrium of the controlling reactions.",

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