Beneficial Role of the Nitrogen-Doped Carbon Nanotubes in the Synthesis of the Active Palladium Supported Catalyst
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Diamond and Related Materials
ISSN: 0925-9635
, E-ISSN: 1879-0062
|
| Вых. Данные |
Год: 2019,
Том: 98,
Номер статьи
: 107484,
Страниц
: 8
DOI:
10.1016/j.diamond.2019.107484
|
| Ключевые слова |
Carbon nanotubes Nitrogen doping Palladium Isolated ions Nanoparticles Nitrobenzene hydrogenation |
| Авторы |
Matus Ekaterina V.
1
,
Suboch Arina N.
1
,
Lisitsyn Alexander S.
1
,
Svintsitskiy Dmitry A.
1,2
,
Modin Evgeny
3
,
Chuvilin Andrey
3,4
,
Ismagilov Zinfer R.
1,5
,
Podyacheva Olga Yu.
1,2
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, SB RAS
|
| 2 |
Novosibirsk State University
|
| 3 |
CIC nanoGUNE, Donostia
|
| 4 |
Ikerbasque, Basque Foundation for Science
|
| 5 |
Institute of Coal Chemistry and Materials Science FRC CCC SB RAS
|
|
Информация о финансировании (2)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0003
|
|
2
|
Ministry of Economy and Business
|
MDM-2016-0618
|
The use of nitrogen doped carbon nanotubes (N-CNTs) as a palladium catalyst support resulted in the formation of isolated palladium ions and metal nanoparticles, depending on the Pd content. It was found that the formation of isolated palladium ions is due to the presence of pyridinic nitrogen centers in the N-CNTs and does not depend on the method of palladium deposition (impregnation or reductive deposition). These ions possess high thermal
stability in hydrogen atmosphere, poorly adsorb CO even at subambient temperature and are low active in catalytic hydrogenation of nitrobenzene to aniline. The beneficial role of the N-CNTs was found to be in the stabilization by graphitic nitrogen of the metallic Pd nanoparticles of ~1.5 nm size showing high activity towards aniline formation at atmospheric pressure. The possibility of the tailored synthesis of different metal species by means of the N-CNTs as a support opens a wide room for use of these carbon nanomaterials in various catalytic applications.