Synthesis and Characterization of Niobium-doped TiO 2 Nanotube Arrays by Anodization of Ti-20Nb Alloys

Zhengchao Xu; Qi Li; Shian Gao; Jianku Shang

doi:10.1016/S1005-0302(12)60144-3

Synthesis and Characterization of Niobium-doped TiO ₂ Nanotube Arrays by Anodization of Ti-20Nb Alloys

Zhengchao Xu, Qi Li, Shian Gao, Jianku Shang

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

Abstract

Well crystallized niobium-doped TiO ₂ nanotube arrays (TiNbO-NT) were successfully synthesized via the anodization of titanium/niobium alloy sheets, followed with a heat treatment at 550 °C for 2 h. Morphology analysis results demonstrated that both the titanium/niobium alloy microstructure and the dissolution strength of electrolyte played major roles in the formation of nanotube structure. A single-phase microstructure was more favorable to the formation of uniform nanotube arrays, while modulating the dissolution strength of electrolyte was required to obtain nanotube arrays from the alloys with multi-phase microstructures. X-ray diffraction (XRD) and X-ray photoelectron (XPS) analysis results clearly demonstrated that niobium dopants (Nb ⁵⁺) were successfully doped into TiO ₂ anatase lattice by substituting Ti ⁴⁺ in this approach.

Original language	English (US)
Pages (from-to)	865-870
Number of pages	6
Journal	Journal of Materials Science and Technology
Volume	28
Issue number	10
DOIs	https://doi.org/10.1016/S1005-0302(12)60144-3
State	Published - Oct 2012
Externally published	Yes

Keywords

Anodization
Doping
Nanotube arrays
TiO

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Polymers and Plastics
Metals and Alloys
Materials Chemistry

Online availability

10.1016/S1005-0302(12)60144-3

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Cite this

@article{9fe898ec6ee84eaaa6847221eb36f338,

title = "Synthesis and Characterization of Niobium-doped TiO 2 Nanotube Arrays by Anodization of Ti-20Nb Alloys",

abstract = "Well crystallized niobium-doped TiO 2 nanotube arrays (TiNbO-NT) were successfully synthesized via the anodization of titanium/niobium alloy sheets, followed with a heat treatment at 550 °C for 2 h. Morphology analysis results demonstrated that both the titanium/niobium alloy microstructure and the dissolution strength of electrolyte played major roles in the formation of nanotube structure. A single-phase microstructure was more favorable to the formation of uniform nanotube arrays, while modulating the dissolution strength of electrolyte was required to obtain nanotube arrays from the alloys with multi-phase microstructures. X-ray diffraction (XRD) and X-ray photoelectron (XPS) analysis results clearly demonstrated that niobium dopants (Nb 5+) were successfully doped into TiO 2 anatase lattice by substituting Ti 4+ in this approach.",

keywords = "Anodization, Doping, Nanotube arrays, TiO",

author = "Zhengchao Xu and Qi Li and Shian Gao and Jianku Shang",

note = "Funding Information: This work is supported by the National Natural Science Foundation of China (Grant No. 51102246), the Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences (Grant No. Y0N5A111A1), and the Youth Innovation Promotion Association, Chinese Academy of Sciences (Grant No. Y2N5711171).",

year = "2012",

month = oct,

doi = "10.1016/S1005-0302(12)60144-3",

language = "English (US)",

volume = "28",

pages = "865--870",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

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T1 - Synthesis and Characterization of Niobium-doped TiO 2 Nanotube Arrays by Anodization of Ti-20Nb Alloys

AU - Xu, Zhengchao

AU - Li, Qi

AU - Gao, Shian

AU - Shang, Jianku

N1 - Funding Information: This work is supported by the National Natural Science Foundation of China (Grant No. 51102246), the Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences (Grant No. Y0N5A111A1), and the Youth Innovation Promotion Association, Chinese Academy of Sciences (Grant No. Y2N5711171).

PY - 2012/10

Y1 - 2012/10

N2 - Well crystallized niobium-doped TiO 2 nanotube arrays (TiNbO-NT) were successfully synthesized via the anodization of titanium/niobium alloy sheets, followed with a heat treatment at 550 °C for 2 h. Morphology analysis results demonstrated that both the titanium/niobium alloy microstructure and the dissolution strength of electrolyte played major roles in the formation of nanotube structure. A single-phase microstructure was more favorable to the formation of uniform nanotube arrays, while modulating the dissolution strength of electrolyte was required to obtain nanotube arrays from the alloys with multi-phase microstructures. X-ray diffraction (XRD) and X-ray photoelectron (XPS) analysis results clearly demonstrated that niobium dopants (Nb 5+) were successfully doped into TiO 2 anatase lattice by substituting Ti 4+ in this approach.

AB - Well crystallized niobium-doped TiO 2 nanotube arrays (TiNbO-NT) were successfully synthesized via the anodization of titanium/niobium alloy sheets, followed with a heat treatment at 550 °C for 2 h. Morphology analysis results demonstrated that both the titanium/niobium alloy microstructure and the dissolution strength of electrolyte played major roles in the formation of nanotube structure. A single-phase microstructure was more favorable to the formation of uniform nanotube arrays, while modulating the dissolution strength of electrolyte was required to obtain nanotube arrays from the alloys with multi-phase microstructures. X-ray diffraction (XRD) and X-ray photoelectron (XPS) analysis results clearly demonstrated that niobium dopants (Nb 5+) were successfully doped into TiO 2 anatase lattice by substituting Ti 4+ in this approach.

KW - Anodization

KW - Doping

KW - Nanotube arrays

KW - TiO

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