title: Novel insights on magadiite disaggregation: a multitechnique study on thermal stability.
abstract: Disaggregated magadiite was obtained through ion-exchange in acidic media from magadiite intercalated in the synthesis with cetyltrimethylamonium cations. The combination of Soxhlet extraction and ultrasound during the procedure resulted in different morphology and different properties when compared with the pristine material, as observed by SEM. Thermal and surface properties studies performed by VT-XRD, TG, VT-FTIR, HETCOR SS-NMR, and N2 physisorption show that disaggregated magadiite presents a basal space of 1.35 nm and that [SiO4] entities of adjacent magadiite silicate layers connect during ion-exchange under ultrasound. Despite these bonding events, the surface area increased from 20-26 m(2) g(-1) in CTA-magadiite to 55-72 m(2) g(-1) in disaggregated magadiite.
authors.affiliation: Dipartimento di Scienze e Innovazione Tecnologica and Centro Nano-SiSTeMI, Università del Piemonte Orientale A. Avogadro, Via T. Michel 11, 15121 Alessandria, Italy.
authors.forename: Juliana
authors.initials: J
authors.lastname: Martins de Souza e Silva
authors.forename: Geo
authors.initials: G
authors.lastname: Paul
authors.forename: James
authors.initials: J
authors.lastname: Bendall
authors.forename: Chiara
authors.initials: C
authors.lastname: Bisio
authors.forename: Leonardo
authors.initials: L
authors.lastname: Marchese
authors.forename: Heloise O
authors.initials: HO
authors.lastname: Pastore