Electrochemical Fabrication of Titania Nanotube Arrays with Tunning Nature of Dimethyl Sulfoxide and its Application for Hydrogen Sensing

2012 ◽  
Vol 12 (4) ◽  
pp. 3026-3034 ◽  
Author(s):  
Yuhua Ge ◽  
Wenjing Zhu ◽  
Xiaorui Liu ◽  
Songqin Liu
Keyword(s):  
Dimethyl Sulfoxide ◽  
Nanotube Arrays ◽  
Hydrogen Sensing ◽  
Titania Nanotube Arrays ◽  
Titania Nanotube ◽  
Electrochemical Fabrication

Electrochemical Fabrication and Characterization of Highly-Ordered Titania Nanotube Arrays

2010 ◽  
Vol 148-149 ◽  
pp. 1600-1606
Author(s):  
Hai Tao Zhang ◽  
Xiang Yun Deng ◽  
Xin Zheng Wu ◽  
Ri Ke Chen
Keyword(s):  
Ph Value ◽  
Anatase Phase ◽  
Nanotube Arrays ◽  
Cyclic Voltammogram ◽  
X Ray Diffraction ◽  
Titania Nanotube Arrays ◽  
Titania Nanotube ◽  
Anodic Voltage ◽  
Electrochemical Fabrication

Highly-ordered titania nanotube arrays were fabricated in ethylene glycol polar organic electrolyte containing a certain amount of sodium fluoride. Series of patterned nanotube arrays with different outside diameter and aspect ratio were obtained via optimizing anodic voltage, the concentration of fluoride ion and reaction time. The as-prepared nanotube arrays were amorphous and transformed single anatase phase characterized by X-ray diffraction with annealing under the condition of 450oC for 3h. Cyclic voltammogram behaviors were discussed using electrochemical workstation. The pH value of electrolyte, the scanning rate, the crystal structure and morphology of the samples have a significant effect on the reductive/oxidative and H+ intercalation properties.

Fabrication and Mechanism of Titania Nanotube Arrays by Anodization in DMSO Electrolyte

2010 ◽  
Vol 148-149 ◽  
pp. 873-876
Author(s):  
Jian Ling Zhao ◽  
Ying Ru Kang ◽  
Xi Xin Wang ◽  
Cheng Chun Tang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Dimethyl Sulfoxide ◽  
Titanium Foil ◽  
Nanotube Arrays ◽  
Dmso Solution ◽  
Anodization Time ◽  
Titania Nanotube Arrays ◽  
Titania Nanotube ◽  
Scanning Electron

Titania nanotube arrays were synthesized via anodic oxidization of titanium foil in dimethyl sulfoxide (DMSO) solution containing 2 wt% HF and 3 wt% H2O at 40 V. The microstructure of the arrays was characterized with scanning electron microscopy (SEM). The results show that morphology of titania nanotube arrays is evidently influenced by the anodization time, and with the extension of oxidation time, the better morphology could be obtained. The possible formation mechanism of titania nanotube arrays has been discussed.

Gold Nanoparticles Modified Titania Nanotube Arrays for Amperometric Determination of Ascorbic Acid

2010 ◽  
Vol 43 (18) ◽  
pp. 2809-2822 ◽  
Author(s):  
T. G. Satheesh Babu ◽  
P. V. Suneesh ◽  
T. Ramachandran ◽  
Bipin Nair
Keyword(s):  
Gold Nanoparticles ◽  
Ascorbic Acid ◽  
Nanotube Arrays ◽  
Amperometric Determination ◽  
Titania Nanotube Arrays ◽  
Titania Nanotube

Effects of Synthesis Parameters on Controllable Growth of Highly-Ordered TiO2 Nanotube Arrays

2011 ◽  
Vol 284-286 ◽  
pp. 791-795 ◽  
Author(s):  
Shi Pu Li ◽  
Shi Wei Lin ◽  
Jian Jun Liao ◽  
Dan Hong Li ◽  
Yang Cao ◽  
...  
Keyword(s):  
Layer Thickness ◽  
Nanotube Arrays ◽  
Mixed Electrolyte ◽  
Preparation Conditions ◽  
Photoelectrical Properties ◽  
Titania Nanotube Arrays ◽  
Titania Nanotube ◽  
Controllable Growth ◽  
Polishing Fluid ◽  
Abrasive Paper

Titania nanotube arrays were fabricated in deionize water and glycerol mixed electrolyte containing a certain amount of NH4F. Three different polishing methods were used for pretreatment of Ti substrates: polished by hand with abrasive paper, by polishing machine, or by chemical polishing fluid (HF:HNO3=1:4, in volumetric ratio). The morphology of three different samples were imaged by scanning electron microscopy, and their photoelectrical properties were studied as well. Experimental results showed that Titania nanotube arrays grown on the Ti substrate and polished by polishing fluid has highly-ordered and well-defined nanotube structure. The effects of anodization potential and duration on synthesis of highly-ordered TiO2nanotubes were also studied in this paper. Both the layer thickness and nanotube diameter linearly increase with the increasing potential. The layer thickness also increases with prolongation of anodization time. By optimizing the preparation conditions, we can successfully control the geometrical structure of TiO2nanotube arrays with diameters in the range between 50 and 200 nm and the layer thickness between 800 and 2000 nm.

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