Библиографическое описание:Electrochemical Reductive Doping of TiO2-Nanotubes to Increase the Efficiency of Photoelectrochemical Water Splitting : научное издание / N. A. Zos'ko [et al.]. - Текст : непосредственный // Russian Journal of Electrochemistry. - 2023. - Т.59, №10. - P. 767-773. - This work is carried out under the State Contract of the Federal Research Center, Krasnoyarsk Scientific Center, Siberian Branch, RAS (project no. 0287-2021-0023), with the using of equipment of the Krasnoyarsk Research Equipment Sharing Center of the Federal Research Center, Krasnoyarsk Scientific Center, Siberian Branch, RAS. - ISSN 1023-1935. - ISSN 1608-3342, DOI 10.1134/S1023193523100142.
Аннотация:TiO2 films with a 1D nanotube structure were obtained by electrochemical anodic oxidation of titanium foil. Electrochemical reductive activation of the TiO2-nanotube-based electrodes was carried out using the method of cyclic voltammetry. The activated electrodes showed significantly higher current density and quantum efficiency of the photoelectrochemical water splitting as compared to native TiO2 nanotubes. Electrochemical treatment of the electrodes by the cyclic voltammetry leads to increase in the photocurrent density by a factor of 4 to 14, depending both on the used wavelength and applied potential. The analysis of electrochemical impedance spectra showed that the increase in the photoelectrochemical process performance is due to increase in the charge transfer rate at the semiconductor/electrolyte interface, as well as improved electronic conductivity of the oxide layer, which contributes to better charge carrier separation and decrease in their recombination rate.
Издательство:Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд), Москва
Источник:Russian Journal of Electrochemistry
Выпуск:Т.59, №10
Номера страниц:767-773
Держатель оригинала документа:Institute of Chemistry and Chemical Technology, Federal Research Center, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Siberian Federal University
Количество экземпляров:
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