Infrared investigation of chemisorption of cyclohexanol and cyclohexanone on Pt/SiO2

T. Szilágyi, A. Sárkány, J. Mink, P. Tétényi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Adsorption of cyclohexanol on Pt/SiO2 catalyst was investigated by means of ir spectroscopy. At room temperature hydrogen atoms from both OH and tertiary carbons split off easily, resulting in the formation of cyclohexanone held on SiO2 by hydrogen bonds whereas on Pt it is held by a π-bond or through the lone electron pair of oxygen. Dissociation of α-hydrogens in cyclohexanone commences only at circa 353 K. At 393 K bands characteristic of an enolic system were observed, suggesting formation of a π-oxoallylic species during dehydrogenation of cyclohexanone.

Original languageEnglish
Pages (from-to)191-199
Number of pages9
JournalJournal of Catalysis
Volume66
Issue number1
DOIs
Publication statusPublished - Jan 1 1980

Fingerprint

Cyclohexanols
Chemisorption
chemisorption
Infrared radiation
Hydrogen
Dehydrogenation
dehydrogenation
extremely high frequencies
hydrogen atoms
Hydrogen bonds
Spectroscopy
dissociation
hydrogen bonds
Adsorption
catalysts
Atoms
Catalysts
Carbon
adsorption
Oxygen

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Infrared investigation of chemisorption of cyclohexanol and cyclohexanone on Pt/SiO2 . / Szilágyi, T.; Sárkány, A.; Mink, J.; Tétényi, P.

In: Journal of Catalysis, Vol. 66, No. 1, 01.01.1980, p. 191-199.

Research output: Contribution to journalArticle

@article{775dc775fe564bd0b4960b231253489f,
title = "Infrared investigation of chemisorption of cyclohexanol and cyclohexanone on Pt/SiO2",
abstract = "Adsorption of cyclohexanol on Pt/SiO2 catalyst was investigated by means of ir spectroscopy. At room temperature hydrogen atoms from both OH and tertiary carbons split off easily, resulting in the formation of cyclohexanone held on SiO2 by hydrogen bonds whereas on Pt it is held by a π-bond or through the lone electron pair of oxygen. Dissociation of α-hydrogens in cyclohexanone commences only at circa 353 K. At 393 K bands characteristic of an enolic system were observed, suggesting formation of a π-oxoallylic species during dehydrogenation of cyclohexanone.",
author = "T. Szil{\'a}gyi and A. S{\'a}rk{\'a}ny and J. Mink and P. T{\'e}t{\'e}nyi",
year = "1980",
month = "1",
day = "1",
doi = "10.1016/0021-9517(80)90021-4",
language = "English",
volume = "66",
pages = "191--199",
journal = "Journal of Catalysis",
issn = "0021-9517",
publisher = "Academic Press Inc.",
number = "1",

}

TY - JOUR

T1 - Infrared investigation of chemisorption of cyclohexanol and cyclohexanone on Pt/SiO2

AU - Szilágyi, T.

AU - Sárkány, A.

AU - Mink, J.

AU - Tétényi, P.

PY - 1980/1/1

Y1 - 1980/1/1

N2 - Adsorption of cyclohexanol on Pt/SiO2 catalyst was investigated by means of ir spectroscopy. At room temperature hydrogen atoms from both OH and tertiary carbons split off easily, resulting in the formation of cyclohexanone held on SiO2 by hydrogen bonds whereas on Pt it is held by a π-bond or through the lone electron pair of oxygen. Dissociation of α-hydrogens in cyclohexanone commences only at circa 353 K. At 393 K bands characteristic of an enolic system were observed, suggesting formation of a π-oxoallylic species during dehydrogenation of cyclohexanone.

AB - Adsorption of cyclohexanol on Pt/SiO2 catalyst was investigated by means of ir spectroscopy. At room temperature hydrogen atoms from both OH and tertiary carbons split off easily, resulting in the formation of cyclohexanone held on SiO2 by hydrogen bonds whereas on Pt it is held by a π-bond or through the lone electron pair of oxygen. Dissociation of α-hydrogens in cyclohexanone commences only at circa 353 K. At 393 K bands characteristic of an enolic system were observed, suggesting formation of a π-oxoallylic species during dehydrogenation of cyclohexanone.

UR - http://www.scopus.com/inward/record.url?scp=85012687029&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85012687029&partnerID=8YFLogxK

U2 - 10.1016/0021-9517(80)90021-4

DO - 10.1016/0021-9517(80)90021-4

M3 - Article

VL - 66

SP - 191

EP - 199

JO - Journal of Catalysis

JF - Journal of Catalysis

SN - 0021-9517

IS - 1

ER -