Zinc Influence on the Formation and Properties of Pt/Mg(Zn)AlOx Catalysts Synthesized from Layered Hydroxides | Sciact - CRIS-система Института катализа

Zinc Influence on the Formation and Properties of Pt/Mg(Zn)AlOx Catalysts Synthesized from Layered Hydroxides Научная публикация

Журнал

Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694

Вых. Данные

Год: 2016, Том: 341, Страницы: 13-23 Страниц : 11 DOI: 10.1016/j.jcat.2016.06.006

Ключевые слова

EXAFS, Platinum catalysts, Propane dehydrogenation, XPS, Zinc containing layered double hydroxides

Авторы

Belskaya O.B. ^1,2 , Stepanova L.N. ¹ , Gulyaeva T.I. ¹ , Erenburg S.B. ^3,4 , Trubina S.V. ³ , Kvashnina K. ⁵ , Nizovskii A.I. ^2,6 , Kalinkin A.V. ⁶ , Zaikovskii V.I. ^6,7 , Bukhtiyarov V.I. ^6,7 , Likholobov V.A. ^1,2

Организации

1	Institute of Hydrocarbons Processing SB RAS, Neftezavodskaya St., 54, 644040 Omsk, Russia
2	Omsk State Technical University, Mira Ave., 11, 644050 Omsk, Russia
3	Nikolaev Institute of Inorganic Chemistry SB RAS, Acad. Lavrentieva Ave., 3, 630090 Novosibirsk, Russia
4	Budker Institute of Nuclear Physics SB RAS, Acad. Lavrentieva Ave., 11, 630090 Novosibirsk, Russia
5	ESRF-The European Synchrotron, CS40220, 38043 Grenoble Cedex 9, France
6	Boreskov Institute of Catalysis SB RAS, Acad. Lavrentieva Ave., 5, 630090 Novosibirsk, Russia
7	Novosibirsk State University, Pirogova Str. 2, 630090 Novosibirsk, Russia

Layered double hydroxides (LDH) containing Al3+, Mg2+ and Zn2+ cations with the ratios of Zn/(Mg + Zn) = 0, 0.05, 0.1, 0.2, 0.5, 0.7, and 1.0 were synthesized. The effect of zinc content on the phase composition of LDH and on the structural parameters, textural characteristics and acid–base properties of the corresponding mixed oxides were studied. This type of supports was used to obtain the non-acid platinum Pt/ Mg(Zn)AlOx catalysts. The formation of supported platinum particles, their composition, dispersion and electronic state were examined by means of TPR, TEM, XPS, and EXAFS. The possibility to obtain the bimetallic PtZn particles, whose structure and strength of interaction with the support depend on the zinc content of the support, was demonstrated. It was found that the presence of zinc atoms in the platinum environment decreases the particle size of active metal and stabilizes platinum in the active metallic state ensuring a high activity of the catalyst in dehydrogenation of propane with the selectivity for propylene above 99%.

Belskaya O.B. , Stepanova L.N. , Gulyaeva T.I. , Erenburg S.B. , Trubina S.V. , Kvashnina K. , Nizovskii A.I. , Kalinkin A.V. , Zaikovskii V.I. , Bukhtiyarov V.I. , Likholobov V.A.
Zinc Influence on the Formation and Properties of Pt/Mg(Zn)AlOx Catalysts Synthesized from Layered Hydroxides
Journal of Catalysis. 2016. V.341. P.13-23. DOI: 10.1016/j.jcat.2016.06.006 WOS Scopus РИНЦ OpenAlex CAPlusCA

Поступила в редакцию:	2 мар. 2016 г.
Принята к публикации:	6 июн. 2016 г.
Опубликована online:	30 июн. 2016 г.
Опубликована в печати:	1 сент. 2016 г.

≡ Web of science:	WOS:000382408300002
≡ Scopus:	2-s2.0-84976578874
≡ РИНЦ:	26835589
≡ OpenAlex:	W2463231159
≡ Chemical Abstracts:	2016:1014029
≡ Chemical Abstracts (print):	165:317373

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≡ Scopus	41	Сбор данных от 15.02.2026
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