Solar Photocatalysts Based on Titanium Dioxide Nanotubes for Hydrogen Evolution from Aqueous Solutions of Ethanol | Sciact - CRIS-система Института катализа

Solar Photocatalysts Based on Titanium Dioxide Nanotubes for Hydrogen Evolution from Aqueous Solutions of Ethanol Научная публикация

Журнал

International Journal of Hydrogen Energy
ISSN: 0360-3199 , E-ISSN: 1879-3487

Вых. Данные

Год: 2021, Том: 46, Номер: 32, Страницы: 16917-16924 Страниц : 8 DOI: 10.1016/j.ijhydene.2020.12.190

Ключевые слова

Titanium foil anodization; Titanium dioxide nanotubes; Hydrogen evolution; Ethanol solution

Авторы

Valeeva Albina A. ^1,2 , Dorosheva Irina B. ^1,2,3 , Kozlova Ekaterina A. ⁴ , Sushnikova Anna A. ^2,3 , Kurenkova Anna Yu ⁴ , Saraev Аndrey А. ⁴ , Schroettner Hartrmuth ⁵ , Rempel Аndrey А. ^2,3

Организации

1	Institute of Solid State Chemistry of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620990, Russia
2	Ural Federal University, Ekaterinburg 6200002 Russia
3	Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620016 Russia
4	Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
5	Institute for Electron Microscopy and Nanoanalysis, Graz University of Technology, Graz A 8010, Austria

Информация о финансировании (1)

Российский фонд фундаментальных исследований

20-03-00299

Titanium foil was anodized to grow titanium dioxide nanotubes (TiO2 NT) by using an original technique. A solution of ethylene glycol and ammonium fluoride with a concentration of 0.5 wt% was employed as electrolyte, corrosion-resistant steel was chosen as the cathode material. Anodic oxidation was carried out potentiostatically at a voltage of 60 V at ambient temperature for 90 min. Modification of as prepared TiO2 NT were modified by calcination in air at 350°C for 4 h. Platinization of TiO2 NT was carried out by chemical reduction of platinum from H2PtCl6 solution by NaBH4 solution. Photocatalyst characterization was performed by using XRD, BET, SEM, XPS techniques. It was found that the calcination of as-prepared TiO2 NT leads to 6-fold increase of the photocatalytic activity under UV-irradiation. The enhanced activity of TiO2 NT is associated with the developed specific surface area and unique morphology of TiO2 NT. This results in high rate of separation of photogenerated excited electrons and holes. Due to high separation rate the catalytic activity increases substantially.

Valeeva A.A. , Dorosheva I.B. , Kozlova E.A. , Sushnikova A.A. , Kurenkova A.Y. , Saraev А.А. , Schroettner H. , Rempel А.А.
Solar Photocatalysts Based on Titanium Dioxide Nanotubes for Hydrogen Evolution from Aqueous Solutions of Ethanol
International Journal of Hydrogen Energy. 2021. V.46. N32. P.16917-16924. DOI: 10.1016/j.ijhydene.2020.12.190 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	29 окт. 2020 г.
Принята к публикации:	26 дек. 2020 г.
Опубликована online:	13 янв. 2021 г.
Опубликована в печати:	10 мая 2021 г.

Web of science:	WOS:000644993100010
Scopus:	2-s2.0-85100182053
РИНЦ:	44969750
Chemical Abstracts:	2021:94200
OpenAlex:	W3120864958

БД	Цитирований
Scopus	32
Web of science	28
РИНЦ	30
OpenAlex	32