Immobilization of ionic liquids in translucent tin dioxide monoliths by sol-gel processing

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...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2009 (8)
Main Authors: Bellayer, S., Viau, L., Tebby, Z., Toupance, T., Le Bideau, Jean, Vioux, A.
Format: Article
Language:English
Subjects:
Condensed Matter
Materials Science
Physics
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Summary: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.
ISSN:1477-9226
1477-9234
DOI:10.1039/b814978j