| Autor: |
Adamovich, A. A., Makhmud-Akhunov, M. Yu., Yavtushenko, I. O., Golovanov, V. N. |
| Zdroj: |
Nanobiotechnology Reports; December 2023, Vol. 18 Issue: 6 p854-857, 4p |
| Abstrakt: |
Abstract: The features of creating supercapacitors based on anodic titanium-oxide nanotubes modified with a layer of a conducting polymer, i.e., the emeraldine form of polyaniline, are considered. Multilayer solid-state capacitive systems are formed based on nanostructured electrodes obtained by the anodic treatment of a titanium substrate in a solution of ethylene glycol and ammonium fluoride, followed by the deposition of a layer of polyaniline. Based on the analysis of voltammograms, the capacitance of nanostructured systems is determined to be 4.38 mF/cm2. The features of the influence of the structure of the anodic-formed oxide on the capacitance characteristics of the system are considered. It is established that as a result of the polymorphic transformation of amorphous anodic titanium oxide into crystalline titanium oxide during isothermal annealing, the voltammogram of the systems under study takes on a shape close to an ideal rectangular one, and the capacitance increases by a factor of 2. Based on the impedance-spectroscopy data of the studied samples, an equivalent circuit is constructed and the resistance and capacitance characteristics of the formed supercapacitors are determined. |
| Databáze: |
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