Anodic growth of titanium oxide: electrochemical behaviour and morphological evolution.

A. Mazzarolo; M. Curioni; A. Vicenzo; P. Skeldon; G. E. Thompson

doi:10.1016/j.electacta.2012.04.114

Anodic growth of titanium oxide: electrochemical behaviour and morphological evolution.

A. Mazzarolo, M. Curioni, A. Vicenzo, P. Skeldon, G. E. Thompson

Research output: Contribution to journal › Article › peer-review

Abstract

The mechanism of growth of anodic titanium oxide in sulphuric acid has been investigated by potentiostatic and potentiodynamic anodizing, electrochemical impedance spectroscopy and transmission electron microscopy. It was found that most of the charge passed during growth is consumed in oxygen evolution at the oxide-solution interface and the measured current relates to the electronic conduction properties of the oxide. Further, it was confirmed that an amorphous to crystalline transition takes place during potentiodynamic growth, and the transition triggers the additional generation of oxygen bubbles that occurs within the oxide. Depending on the growth conditions, the oxygen bubbles can rupture with local re-growth of the film then occurring. © 2012 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	288-295
Number of pages	7
Journal	Electrochimica Acta
Volume	75
DOIs	https://doi.org/10.1016/j.electacta.2012.04.114
Publication status	Published - 30 Jul 2012

Keywords

Amorphous to crystalline transition
Anodizing
Sulfuric acid
Titanium oxide

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10.1016/j.electacta.2012.04.114

Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )
Thompson, G. (PI), Bate, P. (CoI), Prangnell, P. (CoI), Preuss, M. (CoI), Quinta Da Fonseca, J. (CoI), Robson, J. (CoI), Skeldon, P. (CoI) & Zhou, X. (CoI)
1/02/10 → 31/07/15
Project: Research

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title = "Anodic growth of titanium oxide: electrochemical behaviour and morphological evolution.",

abstract = "The mechanism of growth of anodic titanium oxide in sulphuric acid has been investigated by potentiostatic and potentiodynamic anodizing, electrochemical impedance spectroscopy and transmission electron microscopy. It was found that most of the charge passed during growth is consumed in oxygen evolution at the oxide-solution interface and the measured current relates to the electronic conduction properties of the oxide. Further, it was confirmed that an amorphous to crystalline transition takes place during potentiodynamic growth, and the transition triggers the additional generation of oxygen bubbles that occurs within the oxide. Depending on the growth conditions, the oxygen bubbles can rupture with local re-growth of the film then occurring. {\textcopyright} 2012 Elsevier Ltd. All rights reserved.",

keywords = "Amorphous to crystalline transition, Anodizing, Sulfuric acid, Titanium oxide",

author = "A. Mazzarolo and M. Curioni and A. Vicenzo and P. Skeldon and Thompson, {G. E.}",

year = "2012",

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doi = "10.1016/j.electacta.2012.04.114",

language = "English",

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journal = "Electrochimica Acta",

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T1 - Anodic growth of titanium oxide: electrochemical behaviour and morphological evolution.

AU - Mazzarolo, A.

AU - Curioni, M.

AU - Vicenzo, A.

AU - Skeldon, P.

AU - Thompson, G. E.

PY - 2012/7/30

Y1 - 2012/7/30

N2 - The mechanism of growth of anodic titanium oxide in sulphuric acid has been investigated by potentiostatic and potentiodynamic anodizing, electrochemical impedance spectroscopy and transmission electron microscopy. It was found that most of the charge passed during growth is consumed in oxygen evolution at the oxide-solution interface and the measured current relates to the electronic conduction properties of the oxide. Further, it was confirmed that an amorphous to crystalline transition takes place during potentiodynamic growth, and the transition triggers the additional generation of oxygen bubbles that occurs within the oxide. Depending on the growth conditions, the oxygen bubbles can rupture with local re-growth of the film then occurring. © 2012 Elsevier Ltd. All rights reserved.

AB - The mechanism of growth of anodic titanium oxide in sulphuric acid has been investigated by potentiostatic and potentiodynamic anodizing, electrochemical impedance spectroscopy and transmission electron microscopy. It was found that most of the charge passed during growth is consumed in oxygen evolution at the oxide-solution interface and the measured current relates to the electronic conduction properties of the oxide. Further, it was confirmed that an amorphous to crystalline transition takes place during potentiodynamic growth, and the transition triggers the additional generation of oxygen bubbles that occurs within the oxide. Depending on the growth conditions, the oxygen bubbles can rupture with local re-growth of the film then occurring. © 2012 Elsevier Ltd. All rights reserved.

KW - Amorphous to crystalline transition

KW - Anodizing

KW - Sulfuric acid

KW - Titanium oxide

U2 - 10.1016/j.electacta.2012.04.114

DO - 10.1016/j.electacta.2012.04.114

M3 - Article

SN - 0013-4686

VL - 75

SP - 288

EP - 295

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Anodic growth of titanium oxide: electrochemical behaviour and morphological evolution.

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Keywords

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Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )

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