Influence of sulfur dioxide adsorption on the surface properties of metal oxides

Autor:	A Aboulayt, Maria Ziolek, Odette Saur, J. Kujawa, Jean-Claude Lavalley
Rok vydání:	1996
Předmět:	Cumene Anatase Process Chemistry and Technology Inorganic chemistry Oxide Catalysis Metal chemistry.chemical_compound Adsorption chemistry Chemisorption visual_art visual_art.visual_art_medium Physical and Theoretical Chemistry Chemical decomposition
Zdroj:	Journal of Molecular Catalysis A: Chemical. 112:125-132
ISSN:	1381-1169
DOI:	10.1016/1381-1169(96)00222-1
Popis:	The effect of SO2 chemisorption at 623 K on various metal oxides (CeO2, MgO, Al2O3, ZrO2, TiO2 anatase and rutile) has been studied by IR spectroscopy and catalytic tests: cumene cracking and isopropanol decomposition, IR spectroscopic studies of lutidine and pyridine adsorbed on SO2 treated metal oxides surfaces show the increase or the creation of Bronsted acidity. Test reactions evidence that the strength of such sites depends on the metal oxide, being very weak on MgO and important on TiO2. Formation of hydrogensulfite species or modification of the redox character of surface properties explains the SO2 chemisorption effects.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::91736475a6e93cba32851b15a3fdc514 https://doi.org/10.1016/1381-1169(96)00222-1 Zobrazit plný text záznamu Full Text from ScienceDirect