Strong Metal–Support Interactions in Cu(I)-Dark TiO2 Nanoscale Photocatalysts Prepared by Pulsed Laser Ablation for Hydrogen Evolution Reaction | Sciact - CRIS-система Института катализа

Strong Metal–Support Interactions in Cu(I)-Dark TiO2 Nanoscale Photocatalysts Prepared by Pulsed Laser Ablation for Hydrogen Evolution Reaction Научная публикация

Журнал

ACS Applied Nano Materials
ISSN: 2574-0970

Вых. Данные

Год: 2024, Том: 7, Номер: 14, Страницы: 17062-17073 Страниц : 12 DOI: 10.1021/acsanm.4c03268

Ключевые слова

Copper, Evolution reactions, Hydrogen, Oxides, Suspensions$; dark (black) TiO2 TiO2hν modification of surface layer pulsed laser ablation in liquid (PLAL) additional laser treatment (ALT) photocatalysis hydrogen evolution reaction (HER) strong metal−support interaction (SMSI)

Авторы

Reutova Olesya A. ¹ , Fakhrutdinova Elena D. ¹ , Goncharova Daria A. ¹ , Stadnichenko Andrey I. ² , Stonkus Olga A. ² , Kharlamova Tamara S. ¹ , Svetlichnyi Valery A. ¹ , Vodyankina Olga V. ¹

Организации

1	National Research Tomsk State University, Tomsk 634050, Russia
2	Boreskov Institute of Catalysis, Novosibirsk 630090, Russia

Информация о финансировании (1)

Российский научный фонд

19-73-30026 (АААА-А19-119052990037-6)

In the present work, the highly effective nanoscale Cu-modified dark TiO2 photocatalysts for hydrogen evolution reactions are prepared by pulsed laser ablation with and without additional laser treatment (ALT). Transmission electron microscopy HR results show that copper is distributed along the dark titania surface both in the form of subnanometer oxide clusters and single atoms (SAs). After the ALT, the Cu dispersion increases, and a large number of SAs appear. The X-ray photoelectron spectroscopy data indicate that the increasing copper content as well as the ALT lead to an increase in the surface Ti3+ content. Copper on the surface exists in the Cu+ state, which is associated with the strong metal–support interaction (SMSI) effect between the defective TiO2 support and a SA/subnanometer cluster of copper. Photocatalytic activity of nanoscale Cu-modified dark TiO2 is studied in the hydrogen evolution from aqueous glycerol solution under irradiation with light-emitting diodes (LEDs) 375 (soft ultraviolet) and LED 410 (visible region). In all cases, the modification of the surface with copper significantly increases the hydrogen yield in both the UV and visible regions. The ALT also leads to an increase in the photocatalytic activity of materials due to an increase in the SMSI between copper species and the surface of the dark TiO2. For the process of photocatalytic hydrogen evolution, a mechanism is proposed, and the products of glycerol photooxidation are identified.

Reutova O.A. , Fakhrutdinova E.D. , Goncharova D.A. , Stadnichenko A.I. , Stonkus O.A. , Kharlamova T.S. , Svetlichnyi V.A. , Vodyankina O.V.
Strong Metal–Support Interactions in Cu(I)-Dark TiO2 Nanoscale Photocatalysts Prepared by Pulsed Laser Ablation for Hydrogen Evolution Reaction
ACS Applied Nano Materials. 2024. V.7. N14. P.17062-17073. DOI: 10.1021/acsanm.4c03268 WOS Scopus РИНЦ OpenAlex

Поступила в редакцию:	7 июн. 2024 г.
Принята к публикации:	28 июн. 2024 г.
Опубликована online:	5 июл. 2024 г.
Опубликована в печати:	26 июл. 2024 г.

Web of science:	WOS:001263987100001
Scopus:	2-s2.0-85198209567
РИНЦ:	68978306
OpenAlex:	W4400358028

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