The mechanism of layer charge reduction and regeneration in Li+-exchanged montmorillonite

Autor:	J. Williams, James A. Ballantine, J. H. Purnell
Rok vydání:	1991
Předmět:	Solvent chemistry.chemical_compound Reaction mechanism Montmorillonite chemistry Proton Inorganic chemistry General Chemistry Cyclohexylamine Alkali metal Heterogeneous catalysis Catalysis
Zdroj:	Catalysis Letters. 9:115-119
ISSN:	1572-879X 1011-372X
Popis:	Thermally induced migration of Li+-cations from the interlamellar region into the sheet structure of montmorillonite clays has long been known to lead to charge reduction which, depending on conditions, may be partial or virtually complete. Charge regeneration by treatment with strong base involves H+-extraction from the sheets and detailed structural and interlamellar analysis establishes a 1∶1 balance between Li+ and H+ arising from the structural exchange -OH + Li+→-OLi + H+. Such lithiated clays are substantially more thermally and solvent stable than their precursors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::75f973f5fd498a07789faaa91c933edd https://doi.org/10.1007/bf00769089 Zobrazit plný text záznamu Full text from SpringerLink