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Nonclassical Adsorption of Methanol on Palladium: The Competition between Adsorption of Single Molecules and Clusters Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455
Output data Year: 2019, Volume: 123, Number: 12, Pages: 7259-7265 Pages count : 7 DOI: 10.1021/acs.jpcc.9b00840
Tags REFLECTION-ABSORPTION SPECTROSCOPY; INFRARED-SPECTRA; CO ADSORPTION; SOLID-SURFACES; CHEMISORPTION; WATER; HYDROGEN; DECOMPOSITION; Pd(111); LIQUID
Authors Kaichev Vasily V. 1,2 , Selivanova Aleksandra V. 1 , Tsapina Anna M. 1 , Saraev Andrey A. 1,2 , Bukhtiyarov Valerii I. 1,2
Affiliations
1 Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
2 Novosibirsk State University, Novosibirsk 630090, Russia

Funding (1)

1 Federal Agency for Scientific Organizations 0303-2016-0001

Abstract: The adsorption of methanol on the Pd(111) surface at 80, 90, and 100 K has been studied by polarization modulation infrared reflection–absorption spectroscopy. It is found that the adsorption of methanol on the palladium surface does not proceed via the layer-by-layer mechanism. At temperatures below 100 K, methanol adsorbs molecularly to form clusters containing several hydrogen-bonded CH3OH molecules. These clusters have low thermal stability and decompose even at 100 K to form isolated methanol molecules bonded with palladium atoms. As a result, at a temperature between 100 and 120 K, methanol adsorbs intact to produce adsorbed isolated molecules. These adsorbed species fast desorb at a temperature above 120 K. The dehydration of methanol is not observed under used conditions.
Cite: Kaichev V.V. , Selivanova A.V. , Tsapina A.M. , Saraev A.A. , Bukhtiyarov V.I.
Nonclassical Adsorption of Methanol on Palladium: The Competition between Adsorption of Single Molecules and Clusters
The Journal of Physical Chemistry C. 2019. V.123. N12. P.7259-7265. DOI: 10.1021/acs.jpcc.9b00840 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Jan 28, 2019
Published online: Mar 7, 2019
Published print: Mar 28, 2019
Identifiers:
publication_identifier.wos_identifier_type WOS:000463115500034
publication_identifier.scopus_identifier_type 2-s2.0-85063140960
publication_identifier.rinz_identifier_type 38672216
publication_identifier.accession_number_identifier_type 2019:441727
publication_identifier.chemical_accession_number_identifier_type 170:377519
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