Ultradisperse Pt Nanoparticles Anchored on Defect Sites in Oxygen-Free Few-Layer Graphene and Their Catalytic Properties in CO Oxidation
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Carbon
ISSN: 0008-6223
, E-ISSN: 1873-3891
|
| Output data |
Year: 2015,
Volume: 89,
Pages: 290-299
Pages count
: 10
DOI:
10.1016/j.carbon.2015.03.050
|
| Tags |
Average size Catalytic properties Catalytic reactions Few-layer graphene Oscillatory behaviors Polyol reductions Protective agents Pt nanoparticles |
| Authors |
Grayfer Ekaterina D.
1
,
Kibis Lidiya S.
2,3
,
Stadnichenko Andrey I.
2,3
,
Vilkov Oleg Yu.
4
,
Boronin Andrei I.
2,3
,
Slavinskaya Elena M.
2,3
,
Stonkus Olga A.
2,3
,
Fedorov Vladimir E.
1,2
|
| Affiliations |
| 1 |
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3, Acad. Lavrentiev Prosp.,
Novosibirsk 630090, Russia
|
| 2 |
Novosibirsk State University, 2, Pirogova St., Novosibirsk 630090, Russia
|
| 3 |
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5, Acad. Lavrentiev Prosp., Novosibirsk 630090, Russia
|
| 4 |
St. Petersburg State University, St. Petersburg 198504, Russia
|
|
Funding (1)
|
1
|
Russian Science Foundation
|
14-13-00674
|
Highly uniform and crystalline ultradisperse Pt nanoparticles with average sizes of 2.4 nm were deposited on oxygen-free few-layer graphene (FLG) by polyol reduction method without any additional protective agents. The samples were analyzed by Raman spectroscopy, photoelectron spectroscopy using synchrotron radiation and high-resolution transmission electron microscopy. The experiments showed that metal nanoparticles were mostly stabilized at defect sites of the FLG support in the absence of oxygen functionalities. Catalytic properties of the samples were tested in CO oxidation reaction. For Pt nanoparticles forming agglomerates an oscillatory behavior under catalytic reaction conditions was observed for the first time for metal–graphene catalysts.