Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

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A comparative study on the structural and supercapacitive properties of TiO2 nanotubes fabricated by potentiostatic and galvanostatic anodization

Author(s): P Shobha, D Muthu Gnana Theresa Nathan, R Mahesh and P Sagayaraj

We report the fabrication of self-organized TiO2 nanotubes employing potentiostatic and galvanostatic anodization. A comparative study is carried out to evaluate the influence of the synthetic modes on the structural and electrochemical behaviors of the samples. Structural and morphological characteristics are investigated using X-ray diffraction and field emission scanning electron microscopy. Electrochemical properties are studied by cyclic voltammetry, chronopotentiometry and electrochemical impedance spectroscopy. The sample prepared by galvanostatic approach demonstrates better capacitive performance than the sample prepared by potentiostatic mode. The enhanced electrochemical behavior is owing to tubular structure with higher accessible surface area of TiO2 nanotubes.


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