Electrochemical impedance spectroscopy to study photo - induced effects on self-organized TiO2 nanotube arrays

2010 ◽  
Vol 55 (20) ◽  
pp. 5938-5946 ◽  
Author(s):  
P. Pu ◽  
H. Cachet ◽  
E.M.M. Sutter
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Self Organized

scholarly journals Highly Ordered TiO2 Nanotube Arrays with Engineered Electrochemical Energy Storage Performances

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 510
Author(s):  
Wangzhu Cao ◽  
Kunfeng Chen ◽  
Dongfeng Xue
Keyword(s):  
Tio2 Nanotubes ◽  
Lithium Ion ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Electrochemical Anodization ◽  
Nanotube Arrays ◽  
Free Standing ◽  
Structured Materials ◽  
Self Organized ◽  
Binder Free

Nanoscale engineering of regular structured materials is immensely demanded in various scientific areas. In this work, vertically oriented TiO2 nanotube arrays were grown by self-organizing electrochemical anodization. The effects of different fluoride ion concentrations (0.2 and 0.5 wt% NH4F) and different anodization times (2, 5, 10 and 20 h) on the morphology of nanotubes were systematically studied in an organic electrolyte (glycol). The growth mechanisms of amorphous and anatase TiO2 nanotubes were also studied. Under optimized conditions, we obtained TiO2 nanotubes with tube diameters of 70–160 nm and tube lengths of 6.5–45 μm. Serving as free-standing and binder-free electrodes, the kinetic, capacity, and stability performances of TiO2 nanotubes were tested as lithium-ion battery anodes. This work provides a facile strategy for constructing self-organized materials with optimized functionalities for applications.

Mechanism study of self-organized TiO2 nanotube arrays by anodization

2008 ◽  
Vol 32 (12) ◽  
pp. 2164 ◽  
Author(s):  
Jinliang Tao ◽  
Jianling Zhao ◽  
Chengcun Tang ◽  
Yingru Kang ◽  
Yangxian Li
Keyword(s):  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Mechanism Study ◽  
Self Organized

scholarly journals Self-Organized Formation of Short TiO2 Nanotube Arrays By Complete Anodization of Ti Thin Films

2012 ◽  
Vol 32 ◽  
pp. 714-718 ◽  
Author(s):  
Masahisa Okada ◽  
Kazuki Tajima ◽  
Yasusei Yamada ◽  
Kazuki Yoshimura
Keyword(s):  
Thin Films ◽  
Tio2 Nanotube Arrays ◽  
Tio2 Nanotube ◽  
Nanotube Arrays ◽  
Self Organized

scholarly journals Electrical Characterization of Titanium Dioxide Nanotubes Using Dielectric and Electrochemical Impedance Spectroscopy

2019 ◽  
Vol 69 (12) ◽  
pp. 3494-3499
Author(s):  
Veronica Manescu (Paltanea) ◽  
Gheorghe Paltanea ◽  
Iosif Vasile Nemoianu ◽  
Dorina Popovici ◽  
Radu Mircea Ciuceanu
Keyword(s):  
Impedance Spectroscopy ◽  
Titanium Surface ◽  
Electrochemical Impedance ◽  
Electrical Characterization ◽  
Point Of View ◽  
Tio2 Nanotube ◽  
Titanium Dioxide Nanotubes ◽  
One Dimensional ◽  
Self Organized

The paper is devoted to the electrochemical anodizing method for TiO2 nanotube layers generation on titanium surface. It is commonly accepted that parameters like anodizing time, electrical voltage and the actual type of electrolyte are important factors in what concerns the TiO2 nanotube diameters and their surface density. The present study considers self-organized titanium nanotubes resulted from an aqueous solution of 49.5 wt% H2O, 49.5 wt% glycerol, 1 wt% HF used as the electrolyte. The actual anodizing duration was 8 hours at an applied voltage of 25 V. Through the technique of scanning electron microscopy, it is shown that the resulted tubular nanostructure is one-dimensional having an approximate inner and outer diameters of 90 nm and 110 nm, respectively. From an electrical point of view, the analysed materials properties were determined using electrochemical and dielectric impedance spectroscopy tests.

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