The influence of hydroxide on the initial stages of anodic growth of TiO2 nanotubular arrays

Zainab T.Y. Al-Abdullah; Yuyoung Shin; Rantej Kler; Christopher C. Perry; Wuzong Zhou; Qiao Chen

doi:10.1088/0957-4484/21/50/505601

The influence of hydroxide on the initial stages of anodic growth of TiO2 nanotubular arrays

Zainab T.Y. Al-Abdullah, Yuyoung Shin, Rantej Kler, Christopher C. Perry, Wuzong Zhou, Qiao Chen

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

Abstract

Understanding the mechanism for growing TiO2 nanotubes is important for controlling the nanostructures. The hydroxide nano-islands on the Ti surface play a significant role at the initial stage of anodization by forming the very first nano-pores at the interface between hydroxide islands and substrate and eliminating the H2O electrolysis. A quantitative time dependent SEM study has revealed a nanotube growth process with an initial linear increase of pore diameter, film thickness and number of pores. During the anodization of titanium, different current transient curves are observed for Ti samples with or without hydroxide on the surface. The transient current profile has been quantitatively analyzed by fitting several distinctive stages based on a growth mechanism supported by SEM observations. It is found that a saturated cubic dependent equation is appropriate to fit a short current upturn due to the increase of the surface area. © 2010 IOP Publishing Ltd.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Nanotechnology
Volume	21
Issue number	50
DOIs	https://doi.org/10.1088/0957-4484/21/50/505601
Publication status	Published - 22 Nov 2010

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title = "The influence of hydroxide on the initial stages of anodic growth of TiO2 nanotubular arrays",

abstract = "Understanding the mechanism for growing TiO2 nanotubes is important for controlling the nanostructures. The hydroxide nano-islands on the Ti surface play a significant role at the initial stage of anodization by forming the very first nano-pores at the interface between hydroxide islands and substrate and eliminating the H2O electrolysis. A quantitative time dependent SEM study has revealed a nanotube growth process with an initial linear increase of pore diameter, film thickness and number of pores. During the anodization of titanium, different current transient curves are observed for Ti samples with or without hydroxide on the surface. The transient current profile has been quantitatively analyzed by fitting several distinctive stages based on a growth mechanism supported by SEM observations. It is found that a saturated cubic dependent equation is appropriate to fit a short current upturn due to the increase of the surface area. {\textcopyright} 2010 IOP Publishing Ltd.",

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T1 - The influence of hydroxide on the initial stages of anodic growth of TiO2 nanotubular arrays

AU - Al-Abdullah, Zainab T.Y.

AU - Shin, Yuyoung

AU - Kler, Rantej

AU - Perry, Christopher C.

AU - Zhou, Wuzong

AU - Chen, Qiao

PY - 2010/11/22

Y1 - 2010/11/22

N2 - Understanding the mechanism for growing TiO2 nanotubes is important for controlling the nanostructures. The hydroxide nano-islands on the Ti surface play a significant role at the initial stage of anodization by forming the very first nano-pores at the interface between hydroxide islands and substrate and eliminating the H2O electrolysis. A quantitative time dependent SEM study has revealed a nanotube growth process with an initial linear increase of pore diameter, film thickness and number of pores. During the anodization of titanium, different current transient curves are observed for Ti samples with or without hydroxide on the surface. The transient current profile has been quantitatively analyzed by fitting several distinctive stages based on a growth mechanism supported by SEM observations. It is found that a saturated cubic dependent equation is appropriate to fit a short current upturn due to the increase of the surface area. © 2010 IOP Publishing Ltd.

AB - Understanding the mechanism for growing TiO2 nanotubes is important for controlling the nanostructures. The hydroxide nano-islands on the Ti surface play a significant role at the initial stage of anodization by forming the very first nano-pores at the interface between hydroxide islands and substrate and eliminating the H2O electrolysis. A quantitative time dependent SEM study has revealed a nanotube growth process with an initial linear increase of pore diameter, film thickness and number of pores. During the anodization of titanium, different current transient curves are observed for Ti samples with or without hydroxide on the surface. The transient current profile has been quantitatively analyzed by fitting several distinctive stages based on a growth mechanism supported by SEM observations. It is found that a saturated cubic dependent equation is appropriate to fit a short current upturn due to the increase of the surface area. © 2010 IOP Publishing Ltd.

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U2 - 10.1088/0957-4484/21/50/505601

DO - 10.1088/0957-4484/21/50/505601

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VL - 21

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JO - Nanotechnology

JF - Nanotechnology

IS - 50

ER -

The influence of hydroxide on the initial stages of anodic growth of TiO2 nanotubular arrays

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