Strong Metal–Support Interactions for Palladium Supported on TiO2 Catalysts in the Heterogeneous Hydrogenation with Parahydrogen | Sciact - CRIS-система Института катализа

Strong Metal–Support Interactions for Palladium Supported on TiO2 Catalysts in the Heterogeneous Hydrogenation with Parahydrogen Научная публикация

Журнал

ChemCatChem
ISSN: 1867-3880 , E-ISSN: 1867-3899

Вых. Данные

Год: 2015, Том: 7, Номер: 17, Страницы: 2581-2584 Страниц : 4 DOI: 10.1002/cctc.201500618, 10.1002/cctc.201500790, 10.1002/cctc.201500910

Ключевые слова

heterogeneous catalysis, hydrogenation, metal-support interactions, polarization, supported catalysts

Авторы

Kovtunov Kirill V. ^1,2 , Barskiy Danila A. ^1,2 , Salnikov Oleg G. ^1,2 , Burueva Dudari B. ^1,2 , Khudorozhkov Alexander K. ^2,3 , Bukhtiyarov Andrey V. ^2,3 , Prosvirin Igor P. ^2,3 , Gerasimov Evgeny Y. ^2,3 , Bukhtiyarov Valerii I. ^2,3 , Koptyug Igor V. ^1,2

Организации

1	Laboratory of Magnetic Resonance Microimaging, International Tomography Center, SB RAS, 3 A Institutskaya St., Novosibirsk 630090 (Russia)
2	Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090 (Russia)
3	Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Pr., Novosibirsk 630090 (Russia)

Информация о финансировании (4)

1	Российский фонд фундаментальных исследований	14-03-00374
2	Российский фонд фундаментальных исследований	14-03-31239 (01201450183)
3	Российский фонд фундаментальных исследований	14-03-93183
4	Российский научный фонд	14-13-00445

Parahydrogen-induced polarization (PHIP) was successfully utilized to demonstrate the strong metal–support interaction (SMSI) effect for palladium supported on titania catalysts. Heterogeneous hydrogenation of 1,3-butadiene over Pd/TiO2 catalysts led to the formation of 1- and 2-butenes and butane, and hyperpolarized products were obtained if parahydrogen was used in the reaction. However, if the catalysts were reduced in H2 flow at 500 8C before the hydrogenation reaction, the observed polarization levels were significantly lower or even zero, which was indicative of the suppression of the pairwise addition of hydrogen route. This observation indicated the possibility to detect the SMSI effect by the PHIP technique. Moreover, by using X-ray photoelectron spectroscopy it was shown that Pd is partially present as Pd d+ after reduction under a hydrogen atmosphere at 500 8C. These results were confirmed by transmission electron microscopy, which revealed the formation of Pd d+ and the dissolution of Pd in the titania lattice.

Kovtunov K.V. , Barskiy D.A. , Salnikov O.G. , Burueva D.B. , Khudorozhkov A.K. , Bukhtiyarov A.V. , Prosvirin I.P. , Gerasimov E.Y. , Bukhtiyarov V.I. , Koptyug I.V.
Strong Metal–Support Interactions for Palladium Supported on TiO2 Catalysts in the Heterogeneous Hydrogenation with Parahydrogen
ChemCatChem. 2015. V.7. N17. P.2581-2584. DOI: 10.1002/cctc.201500618, 10.1002/cctc.201500790, 10.1002/cctc.201500910 WOS Scopus РИНЦ РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	2 мая 2015 г.
Опубликована online:	3 авг. 2015 г.
Опубликована в печати:	1 сент. 2015 г.

Web of science:	WOS:000360821200003
Scopus:	2-s2.0-84940796345
РИНЦ:	24945506 \| 29795608
Chemical Abstracts:	2015:1268785
Chemical Abstracts (print):	163:320866
OpenAlex:	W2133093840

БД	Цитирований
Web of science	59
Scopus	60
РИНЦ	57
OpenAlex	54