Structural Features and Photoelectrocatalytic Properties of Bismuth-Doped Titanium Oxides | Sciact - CRIS-system of Boreskov Institute of Catalysis

Structural Features and Photoelectrocatalytic Properties of Bismuth-Doped Titanium Oxides Full article

Journal

Materials Chemistry and Physics
ISSN: 0254-0584 , E-ISSN: 1879-3312

Output data

Year: 2021, Volume: 259, Article number : 123936, Pages count : 11 DOI: 10.1016/j.matchemphys.2020.123936

Tags

Sol–gel method Bismuth-doped titanium dioxide films Photoelectrocatalytic oxidation Methanol

Authors

Maslov D.A. ¹ , Tsodikov M.V. ¹ , Nikolaev S.A. ² , Kriventsov V.V. ^3,5 , Grinberg V.A. ⁴ , Emets V.V. ⁴ , Mayorova N.A. ⁴

Affiliations

1	A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prosp. 29, Moscow, 119991, Russia
2	M.V. Lomonosov Moscow State University, Leninskie Gory 1, Moscow, 119991, Russia
3	G. K. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Pr. Akad. Lavrentieva 5, Novosibirsk, 630090, Russia
4	A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prosp. 31, Moscow, 119071, Russia
5	G.I. Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Pr. Akad. Lavrentieva 11, Novosibirsk, 630090, Russia

Funding (5)

1	Russian Foundation for Basic Research	18-03-01251
2	Ministry of Science and Higher Education of the Russian Federation	05.621.21.0022 (RFMEFI62119X0022) (АААА-А20-120072290017-9)
3	Siberian Branch of the Russian Academy of Sciences	1.8П
4	Ministry of Science and Higher Education of the Russian Federation
5	Ministry of Science and Higher Education of the Russian Federation

Film photoanodes were made from nanocrystalline TiO2 doped with Bi3+ ions at a concentration of 0.13–3.09 at. %, and their activity towards photoelectrocatalytic oxidation of methanol was studied. It was shown that with a decrease in the Bi content, the photoelectrocatalytic activity of film electrodes gradually increases both when illuminated with monochromatic light (λ = 461 nm, power of 10 mW cm−2; λ = 369 nm, power of 7.5 mW cm−2) and when illuminated by a solar simulator with a power of 1 sun (100 mW cm−2). It was shown that a decrease in the Bi content leads to a decrease in the recombination losses and to an increase in the efficiency of the transfer of holes involved in the photoelectrocatalytic oxidation of methanol. As a result, doping of TiO2 with an optimal amount of Bi (0.13 at. %) provides selective electrocatalytic oxidation of methanol at the photoanode.

Maslov D.A. , Tsodikov M.V. , Nikolaev S.A. , Kriventsov V.V. , Grinberg V.A. , Emets V.V. , Mayorova N.A.
Structural Features and Photoelectrocatalytic Properties of Bismuth-Doped Titanium Oxides
Materials Chemistry and Physics. 2021. V.259. 123936 :1-11. DOI: 10.1016/j.matchemphys.2020.123936 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Jun 15, 2020
Accepted:	Oct 13, 2020
Published online:	Oct 16, 2020
Published print:	Feb 1, 2021

Web of science:	WOS:000615731600002
Scopus:	2-s2.0-85097049015
Elibrary:	45106594
Chemical Abstracts:	2020:2478095
OpenAlex:	W3093236048

DB	Citing
Scopus	6
Web of science	6
Elibrary	6
OpenAlex	6