title: Immobilization of ionic liquids in translucent tin dioxide monoliths by sol-gel processing.
abstract: SnO2 translucent monolith ionogels were obtained by a sol-gel processing using bis(2-methylbutan-2-oxy)di(pentan-2,4-dionato)tin as a precursor in the presence of various ionic liquids: [BMI][Br], [BMI][TFSI], [BMI][BF4]. The confinement of ionic liquids within the gels was evidenced by Differential Scanning Calorimetry, FTIR and FT-Raman spectroscopy. The ionic liquids could be efficiently washed off, which resulted in supermicroporous solids. Calcination in air at 550 degrees C of the dried monoliths resulted in nanoporous nanocrystalline cassiterite tin dioxide particles with crystallite sizes of about 8-12 nm and mean pore sizes around 5 nm.
authors.affiliation: University of Montpellier, Department of Chemistry, Institut Charles Gerhardt, cc 1701, F34095 Montpellier, France.
authors.forename: Séverine
authors.initials: S
authors.lastname: Bellayer
authors.forename: Lydie
authors.initials: L
authors.lastname: Viau
authors.forename: Zoe
authors.initials: Z
authors.lastname: Tebby
authors.forename: Thierry
authors.initials: T
authors.lastname: Toupance
authors.forename: Jean
authors.initials: J
authors.lastname: Le Bideau
authors.forename: André
authors.initials: A
authors.lastname: Vioux