Study of the Interaction between Components at Different Stages of Preparing Ru–Rb/Sibunit Catalysts for the Decomposition of Ammonia
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Russian Journal of Physical Chemistry A
ISSN: 0036-0244
, E-ISSN: 1531-863X
|
| Вых. Данные |
Год: 2020,
Том: 94,
Номер: 11,
Страницы: 2201-2208
Страниц
: 8
DOI:
10.1134/S0036024420110114
|
| Ключевые слова |
ruthenium, rubidium, promoting, Sibunit, ammonia decomposition, thermal stability |
| Авторы |
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
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Center for New Chemical Technologies, Omsk, 644040 Russia
|
| 2 |
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia
|
| 3 |
Omsk State Technical University, Omsk, 644050 Russia
|
| 4 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
| 5 |
National Research Center Kurchatov Institute, Moscow, 123182 Russia
|
|
Информация о финансировании (1)
|
1
|
Федеральное агентство научных организаций России
|
V.46.2.5. (АААА-А17-117021450096-8)
|
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.