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Manifestations of the acidity of adsorbed molecules in H-bonded complexes with silanol groups : Lewis acidity of ozone. / Tsyganenko, A. A.; Storozheva, E. N.; Manoilova, O. V.

в: Catalysis Today, Том 70, № 1-3, 15.10.2001, стр. 59-71.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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Tsyganenko, A. A. ; Storozheva, E. N. ; Manoilova, O. V. / Manifestations of the acidity of adsorbed molecules in H-bonded complexes with silanol groups : Lewis acidity of ozone. в: Catalysis Today. 2001 ; Том 70, № 1-3. стр. 59-71.

BibTeX

@article{b9211b24f11f4f8ba7891955b84178e9,
title = "Manifestations of the acidity of adsorbed molecules in H-bonded complexes with silanol groups: Lewis acidity of ozone",
abstract = "Adsorption of binary mixtures of gases with acidic and basic properties on silica surface has been studied by FTIR spectroscopy at low temperatures. After introducing acidic molecules to silica sample with preadsorbed base, additional shifts of the band of silanol groups already perturbed by bases occur that are interpreted as caused by interaction of the acid with the oxygen atom of silanol group, leading to the H-bond strengthening. Comparison of the effects produced by different acidic molecules enables an estimate of their relative electron-accepting (acidic) properties to be made, including the acidity of ozone that is not easy to estimate by other methods. For strong bases, such as ammonia, pyridine or 2,6-dimethylpyridine, addition of SO2 or NO2 enhances the acidity of silanol groups to such extent that proton transfer occurs, indicating the appearance of Br{\o}nsted acidity induced by coadsorbed acids.",
keywords = "Adsorption, Br{\o}nsted acidity, H-bond, IR spectroscopy, Lewis acidity, Ozone, Silica",
author = "Tsyganenko, {A. A.} and Storozheva, {E. N.} and Manoilova, {O. V.}",
year = "2001",
month = oct,
day = "15",
doi = "10.1016/S0920-5861(01)00407-2",
language = "English",
volume = "70",
pages = "59--71",
journal = "Catalysis Today",
issn = "0920-5861",
publisher = "Elsevier",
number = "1-3",

}

RIS

TY - JOUR

T1 - Manifestations of the acidity of adsorbed molecules in H-bonded complexes with silanol groups

T2 - Lewis acidity of ozone

AU - Tsyganenko, A. A.

AU - Storozheva, E. N.

AU - Manoilova, O. V.

PY - 2001/10/15

Y1 - 2001/10/15

N2 - Adsorption of binary mixtures of gases with acidic and basic properties on silica surface has been studied by FTIR spectroscopy at low temperatures. After introducing acidic molecules to silica sample with preadsorbed base, additional shifts of the band of silanol groups already perturbed by bases occur that are interpreted as caused by interaction of the acid with the oxygen atom of silanol group, leading to the H-bond strengthening. Comparison of the effects produced by different acidic molecules enables an estimate of their relative electron-accepting (acidic) properties to be made, including the acidity of ozone that is not easy to estimate by other methods. For strong bases, such as ammonia, pyridine or 2,6-dimethylpyridine, addition of SO2 or NO2 enhances the acidity of silanol groups to such extent that proton transfer occurs, indicating the appearance of Brønsted acidity induced by coadsorbed acids.

AB - Adsorption of binary mixtures of gases with acidic and basic properties on silica surface has been studied by FTIR spectroscopy at low temperatures. After introducing acidic molecules to silica sample with preadsorbed base, additional shifts of the band of silanol groups already perturbed by bases occur that are interpreted as caused by interaction of the acid with the oxygen atom of silanol group, leading to the H-bond strengthening. Comparison of the effects produced by different acidic molecules enables an estimate of their relative electron-accepting (acidic) properties to be made, including the acidity of ozone that is not easy to estimate by other methods. For strong bases, such as ammonia, pyridine or 2,6-dimethylpyridine, addition of SO2 or NO2 enhances the acidity of silanol groups to such extent that proton transfer occurs, indicating the appearance of Brønsted acidity induced by coadsorbed acids.

KW - Adsorption

KW - Brønsted acidity

KW - H-bond

KW - IR spectroscopy

KW - Lewis acidity

KW - Ozone

KW - Silica

UR - http://www.scopus.com/inward/record.url?scp=0035885995&partnerID=8YFLogxK

U2 - 10.1016/S0920-5861(01)00407-2

DO - 10.1016/S0920-5861(01)00407-2

M3 - Article

AN - SCOPUS:0035885995

VL - 70

SP - 59

EP - 71

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

IS - 1-3

ER -

ID: 41681228