Room Temperature Oxidation of the Surface of Highly Oriented Pyrolytic Graphite (HOPG) with Nitrogen Dioxide in the Presence of Supported Palladium Particles
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
| Вых. Данные |
Год: 2020,
Том: 61,
Номер: 4,
Страницы: 637-645
Страниц
: 9
DOI:
10.1134/S0023158420040126
|
| Ключевые слова |
highly oriented pyrolytic graphite (HOPG); NO2; palladium; X-ray photoelectron spectroscopy (XPS) |
| Авторы |
Smirnov M.Y.
1
,
Kalinkin A.V.
1
,
Sorokin A.M.
1
,
Bukhtiyarov V.I.
1
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
|
Информация о финансировании (1)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0001
|
The interaction of palladium nanoparticles (average size, ∼3 nm) deposited on the surface of highly oriented pyrolytic graphite (HOPG) with nitrogen dioxide at room temperature and a pressure of 10–6 or 10–5 mbar was studied by X-ray photoelectron spectroscopy (XPS). It was shown that the structure of several surface graphene layers was destroyed under these conditions due to the oxidation of carbon at the interface between Pd and HOPG. The reaction proceeded with the participation of oxygen atoms, which were formed as a result of the dissociation of NO2 molecules on the palladium surface. Palladium particles retained their metallic nature, but they penetrated deep into graphite in this case. © 2020, Pleiades Publishing, Ltd.