Fabrication of titanium oxide nanotubes by varying the anodization time

Titanium of 99.7% purity was anodized in 1M potassium phosphate monobasic (KH2PO4) water solution with 0.15M NH4F. Titanium oxide nanotubes were fabricated at anodization potential of 20 V and 4.64 pH. To control the pH of the solution, we have added weak acid such as citric acid because it has three dissociation constants (pKa) of 3.09, 4.75, and 5.41. Citric acid was very useful to control the pH of the 1M KH2PO4 water electrolyte solution within 3 to 5. The diameter and length of the titanium oxide nanotubes were independent on anodization time. The diameter of 120 nm and length of 2.8 μm at anodization time of 5 hrs were observed by field emission scanning electron microscope (FESEM). Undesired thin oxide layer blocking the top of titanium oxide nanotubes was wiped out by increasing the anodization potential with the multi step voltage by 1 V reached to 25 V. The titanium oxide nanotubes having a very large surface area are very attractive for the battery, gas sensor, photocatalytic application, and biomaterials.

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Titanium oxide nanotube arrays prepared by anodic oxidation

Journal of Materials Research ◽

10.1557/jmr.2001.0457 ◽

2001 ◽

Vol 16 (12) ◽

pp. 3331-3334 ◽

Cited By ~ 1548

Author(s):

Dawei Gong ◽

Craig A. Grimes ◽

Oomman K. Varghese ◽

Wenchong Hu ◽

R. S. Singh ◽

...

Keyword(s):

Titanium Oxide ◽

Anodic Oxidation ◽

Hydrofluoric Acid ◽

Layer Structure ◽

Porous Alumina ◽

Pure Titanium ◽

Nanotube Arrays ◽

Titanium Sheet ◽

Anodization Time ◽

Titanium Oxide Nanotubes

Titanium oxide nanotubes were fabricated by anodic oxidation of a pure titanium sheet in an aqueous solution containing 0.5 to 3.5 wt% hydrofluoric acid. These tubes are well aligned and organized into high-density uniform arrays. While the tops of the tubes are open, the bottoms of the tubes are closed, forming a barrier layer structure similar to that of porous alumina. The average tube diameter, ranging in size from 25 to 65 nm, was found to increase with increasing anodizing voltage, while the length of the tube was found independent of anodization time. A possible growth mechanism is presented.

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Synthesis of Co-Fe nanoparticle supported on titanium oxide-nanotubes (TiO2-NTs) as enhanced oxygen reduction reaction electrocatalyst

Materials Today Proceedings ◽

10.1016/j.matpr.2021.02.296 ◽

2021 ◽

Author(s):

Amit Chaturvedi ◽

Patit Paban Kundu

Keyword(s):

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Titanium Oxide ◽

Reduction Reaction ◽

Titanium Oxide Nanotubes ◽

Tio2 Nts

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Wiener polarity index and related molecular topological descriptors of titanium oxide nanotubes

International Journal of Quantum Chemistry ◽

10.1002/qua.26627 ◽

2021 ◽

Author(s):

Muhammad Imran ◽

Mehar Ali Malik ◽

Ramsha Javed

Keyword(s):

Titanium Oxide ◽

Topological Descriptors ◽

Polarity Index ◽

Titanium Oxide Nanotubes

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Preparation and structure analysis of titanium oxide nanotubes

Applied Physics Letters ◽

10.1063/1.1423403 ◽

2001 ◽

Vol 79 (22) ◽

pp. 3702-3704 ◽

Cited By ~ 451

Author(s):

G. H. Du ◽

Q. Chen ◽

R. C. Che ◽

Z. Y. Yuan ◽

L.-M. Peng

Keyword(s):

Titanium Oxide ◽

Structure Analysis ◽

Titanium Oxide Nanotubes

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A flexible lead-free piezoelectric nanogenerator based on vertically aligned BaTiO3 nanotube arrays on a Ti-mesh substrate

RSC Advances ◽

10.1039/c6ra13482c ◽

2016 ◽

Vol 6 (84) ◽

pp. 81426-81435 ◽

Cited By ~ 12

Author(s):

Ermias Libnedengel Tsege ◽

Gyu Han Kim ◽

Venkateswarlu Annapureddy ◽

Beomkeun Kim ◽

Hyung-Kook Kim ◽

...

Keyword(s):

Low Temperature ◽

Titanium Oxide ◽

Hydrothermal Process ◽

Lead Free ◽

Nanotube Arrays ◽

Titanium Oxide Nanotubes ◽

Vertically Aligned ◽

Ti Mesh

A novel, flexible lead-free piezoelectric nanogenerator was developed using a uniform BaTiO3 film; synthesized by in situ conversion of titanium oxide nanotubes in a low temperature hydrothermal process.

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