PtPd-Nanoparticles Supported by New Carbon Materials
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Journal of Structural Chemistry
ISSN: 0022-4766
, E-ISSN: 1573-8779
|
| Вых. Данные |
Год: 2016,
Том: 57,
Номер: 7,
Страницы: 1398-1406
Страниц
: 9
DOI:
10.1134/S0022476616070143
|
| Ключевые слова |
fluorinated graphite, graphene, oxide graphite, PtPd bimetallic nanoparticles, thermal exfoliated graphite, XAFS, XPS |
| Авторы |
Asanova T.I.
1
,
Asanov I.P.
1,2
,
Tur V.A.
1
,
Gerasimov E.Y.
3
,
Brzhezinskaya M.
4
|
| Организации |
| 1 |
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
|
| 2 |
Novosibirsk National Research State University, Russia
|
| 3 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
|
| 4 |
Helmholtz Zentrum Berlin, Institute for Nanometre Optics and Technology, Germany
|
|
Информация о финансировании (1)
|
1
|
Российский фонд фундаментальных исследований
|
16-03-00048
|
Nanocomposites based on PtPd nanoparticles with chemical ordering like disordered solid solution on surface of multilayer graphene have been prepared through thermal shock of mechanically obtained mixture of double complex salt [Pd(NH3)4][PtCl6] and different carbon materials–exfoliated graphite, graphite oxide and graphite fluoride. An effect of original carbon precursors on formation of PtPd bimetallic nanoparticles was studied using X-ray absorption spectroscopy (XAFS), transmission ELECTRON microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). It was shown that the distribution of bimetallic nanoparticles over the multilayer graphene surface as well as the particles size distribution is controlled by the graphene precursors. For all nanocomposites, the surface of the nanoparticles was found to be Pd-enriched. In case when the thermal exfoliated graphite and graphite oxide were used as the graphene precursors a thin graphitized layer covered the nanoparticles surface. Such a graphitized layer was not observed in the nanocomposite, which used the fluorinated graphite as the precursor.