Multilayer Adsorption of Methanol on Platinum at Low Temperatures
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Applied Surface Science
ISSN: 0169-4332
|
| Output data |
Year: 2021,
Volume: 535,
Article number
: 147717,
Pages count
: 6
DOI:
10.1016/j.apsusc.2020.147717
|
| Tags |
Adsorption; Condensed methanol; Platinum; Structure ordering; Vibrational spectroscopy |
| Authors |
Selivanova Aleksandra V.
1
,
Kremneva Anna M.
1
,
Saraev Andrey A.
1
,
Kaichev Vasily V.
1
,
Bukhtiyarov Valerii I.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
|
|
Funding (1)
|
1
|
Ministry of Science and Higher Education of the Russian Federation
|
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.