Issue 2, 1981
From the journal:

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases

Comparative adsorption of H2S, CH3SH and (CH3)2S on alumina. Structure of species and adsorption sites

Odette Saur,   Thérèse Chevreau,   Jean Lamotte,   Josette Travert  and  Jean-Claude Lavalley  

Abstract

The adsorption of H2S, CH3SH and (CH3)2S has been studied by gravimetry and infrared spectroscopy. Some experiments have been carried out with preadsorbed pyridine as a poison. The results show that (CH3)2S is bonded to Lewis acid sites and that 60 µmol g–1 are irreversibly coordinated to stronger sites of this type. Dissociative chemisorption has been observed for H2S and CH3SH. Poisoning experiments lead us to conclude that the first adsorption steps involve either a coordinative adsorption (ca. 30 µmol g–1) or a hydrogen bond between a surface basic oxygen atom and the H atom of the SH bond (ca. 50 µmol g–1). The reversible adsorption of CH3SH is thought to occur by these two processes besides another one in which the S atom is H bonded to a hydroxyl surface group. These results clarify the nature of the adsorption sites of alumina.

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Article information

DOI
https://doi.org/10.1039/F19817700427
Article type
Paper

J. Chem. Soc., Faraday Trans. 1, 1981,77, 427-437

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Comparative adsorption of H2S, CH3SH and (CH3)2S on alumina. Structure of species and adsorption sites

O. Saur, T. Chevreau, J. Lamotte, J. Travert and J. Lavalley, J. Chem. Soc., Faraday Trans. 1, 1981, 77, 427 DOI: 10.1039/F19817700427

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