Pt1−xNix Alloy Nanoparticles Embedded in Self-Grown Carbon Nanofibers: Synthesis, Properties and Catalytic Activity in HER Научная публикация
| Журнал |
Catalysts
ISSN: 2073-4344 |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Вых. Данные | Год: 2023, Том: 13, Номер: 3, Номер статьи : 599, Страниц : 18 DOI: 10.3390/catal13030599 | ||||||||
| Ключевые слова | nickel; platinum; nanoalloys; X-ray diffraction analysis; carbon nanofibers; electrochemical hydrogen evolution reaction | ||||||||
| Авторы |
|
||||||||
| Организации |
|
Информация о финансировании (2)
| 1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | 0239-2021-0010 |
| 2 | Российский научный фонд | 21-13-00414 (121041300222-6) |
Реферат:
The development of new heterogeneous Pt-containing catalysts has retained its relevance over the past decades. The present paper describes the method to produce metal–carbon composites, Pt1−xNix/CNF, with an adjustable Pt/Ni ratio. The composites represent Pt1−xNix (x = 0.0–1.0) nanoparticles embedded within a structure of carbon nanofibers (CNF). The synthesis of the composites is based on a spontaneous disintegration of Pt1−xNix alloys in an ethylene-containing atmosphere with the formation of CNF. The initial Pt1−xNix alloys were prepared by thermolysis of multicomponent precursors. They possess a porous structure formed by fragments of 100–200 nm. As was shown by X-ray diffraction analysis, the crystal structure of the alloys containing 0–30 and 60–100 at.% Ni corresponds to a fcc lattice based on platinum (Fm-3m), while the Pt0.50Ni0.50 sample is an intermetallic compound with the tetragonal structure (P4/mmm). The impact of the Ni content in the Pt1−xNix samples on their activity in ethylene decomposition was studied as well. As was revealed, the efficiency of Pt1−xNix alloys in this process increases with the rise of Ni concentration. The composite samples were examined in an electrochemical hydrogen evolution reaction. The synthesized Pt1-xNix/CNF composites demonstrated superior activity if compared with the Pt/Vulcan commercial catalyst.
Библиографическая ссылка:
Popov A.A.
, Afonnikova S.D.
, Varygin A.D.
, Bauman Y.I.
, Trenikhin M.V.
, Plyusnin P.E.
, Shubin Y.V.
, Vedyagin A.A.
, Mishakov I.V.
Pt1−xNix Alloy Nanoparticles Embedded in Self-Grown Carbon Nanofibers: Synthesis, Properties and Catalytic Activity in HER
Catalysts. 2023. V.13. N3. 599 :1-18. DOI: 10.3390/catal13030599 WOS Scopus РИНЦ CAPlus OpenAlex
Pt1−xNix Alloy Nanoparticles Embedded in Self-Grown Carbon Nanofibers: Synthesis, Properties and Catalytic Activity in HER
Catalysts. 2023. V.13. N3. 599 :1-18. DOI: 10.3390/catal13030599 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 9 февр. 2023 г. |
| Принята к публикации: | 14 мар. 2023 г. |
| Опубликована в печати: | 16 мар. 2023 г. |
| Опубликована online: | 16 мар. 2023 г. |
Идентификаторы БД:
| Web of science: | WOS:000957311700001 |
| Scopus: | 2-s2.0-85151496358 |
| РИНЦ: | 54908329 |
| Chemical Abstracts: | 2023:684441 |
| OpenAlex: | W4327700192 |