A comparative study on the morphological features of highly ordered titania nanotube arrays prepared via galvanostatic and potentiostatic modes

2014 ◽  
Vol 14 (6) ◽  
pp. 868-875 ◽  
Author(s):  
T. Manovah David ◽  
P. Wilson ◽  
C. Ramesh ◽  
P. Sagayaraj
Keyword(s):  
Comparative Study ◽  
Morphological Features ◽  
Nanotube Arrays ◽  
Titania Nanotube Arrays ◽  
Titania Nanotube

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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