Multilayer Adsorption of Methanol on Platinum at Low Temperatures
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Applied Surface Science
ISSN: 0169-4332
|
| Вых. Данные |
Год: 2021,
Том: 535,
Номер статьи
: 147717,
Страниц
: 6
DOI:
10.1016/j.apsusc.2020.147717
|
| Ключевые слова |
Adsorption; Condensed methanol; Platinum; Structure ordering; Vibrational spectroscopy |
| Авторы |
Selivanova Aleksandra V.
1
,
Kremneva Anna M.
1
,
Saraev Andrey A.
1
,
Kaichev Vasily V.
1
,
Bukhtiyarov Valerii I.
1
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
|
|
Информация о финансировании (1)
|
1
|
Министерство науки и высшего образования Российской Федерации
|
075-15-2019-1876
|
Multilayer adsorption of methanol on the Pt(1 1 1) surface has been studied in the temperature range between 80 and 120 K by temperature-programmed desorption and polarization-modulation infrared reflection absorption spectroscopy. It has been found that the adsorption at 80–90 K leads to the formation of an amorphous layer of condensed methanol. This layer is thermally unstable, and heating to 100 K leads to the ordering of its structure via the formation of long (CH3OH)n chains, which are typical of the α phase of solid methanol. At 100 K, the adsorption of methanol directly leads to the formation of a well crystallized condensed phase. © 2020 Elsevier B.V.