Study of the Interaction between Components at Different Stages of Preparing Ru-Rb/Sibunit Catalysts for the Decomposition of Ammonia

Study of the Interaction between Components at Different Stages of Preparing Ru-Rb/Sibunit Catalysts for the Decomposition of Ammonia Full article

Journal

Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X

Output data

Year: 2020, Volume: 94, Number: 11, Pages: 2201-2208 Pages count : 8 DOI: 10.1134/S0036024420110114

Tags

ammonia decomposition; promoting; rubidium; ruthenium; Sibunit; thermal stability

Authors

Iost K.N. ¹ , Smirnova N.S. ² , Borisov V.A. ^1,3 , Temerev V.L. ¹ , Surovikin Yu.V. ¹ , Kriventsov V.V. ⁴ , Khramov E.V. ⁵ , Zubavichus Ya.V. ⁴ , Trenikhin M.V. ^1,3 , Gerasimov E.Yu. ⁴ , Shlyapin D.A. ¹ , Tsyrul'nikov P.G. ¹

Affiliations

1	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Center for New Chemical Technologies
2	Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
3	Omsk State Technical University
4	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
5	National Research Center Kurchatov Institute

The interaction between the components of a Ru–Rb/Sibunit catalyst for the decomposition of ammonia is studied via XAFS spectroscopy, X-ray diffraction with synchrotron radiation, and high-resolution transmission electron microscopy. The porous structure of the samples is examined at the stages of preparation. A set of measures reveals the presence of ruthenium in the catalyst (mainly in the metallic state) and the absence of joint phases of ruthenium and rubidium. It is found that rubidium is in an oxidized state in the catalyst in the form of compounds in direct contact with particles of active component and comparable in size to the latter, and as small clusters found mainly in the structure of carbon support.

Iost K.N. , Smirnova N.S. , Borisov V.A. , Temerev V.L. , Surovikin Y.V. , Kriventsov V.V. , Khramov E.V. , Zubavichus Y.V. , Trenikhin M.V. , Gerasimov E.Y. , Shlyapin D.A. , Tsyrul'nikov P.G.
Study of the Interaction between Components at Different Stages of Preparing Ru-Rb/Sibunit Catalysts for the Decomposition of Ammonia
Russian Journal of Physical Chemistry A. 2020. V.94. N11. P.2201-2208. DOI: 10.1134/S0036024420110114 WOS Scopus РИНЦ OpenAlex

Иост К.Н. , Смирнова Н.С. , Борисов В.А. , Темерев В.Л. , Суровикин Ю.В. , Кривенцов В.В. , Храмов Е.В. , Зубавичус Я.В. , Тренихин М.В. , Герасимов Е.Ю. , Шляпин Д.А. , Цырульников П.Г.
Изучение взаимодействия компонентов на различных стадиях приготовления катализаторов Ru–Rb/сибунит для разложения аммиака
Журнал физической химии. 2020. Т.94. №11. С.1595-1603. РИНЦ

Submitted:	Jan 23, 2020
Accepted:	Mar 17, 2020
Published print:	Nov 1, 2020
Published online:	Nov 6, 2020

Web of science:	WOS:000583025300004
Scopus:	2-s2.0-85094630039
Elibrary:	45183857
OpenAlex:	W3095393739

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