Electrical, textural and structural characterization of EMIMAc silica ionogels and their corresponding aerogels - Université Toulouse 1 Capitole Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2013

Electrical, textural and structural characterization of EMIMAc silica ionogels and their corresponding aerogels

Résumé

Silica gels were synthesized from TMOS and MTMS in different proportions changing the ionic liquid concentration. EMIMac have significant influence in the gelation processe. The textural characterizations showed an effect of these concentrations on the corresponding aerogels: pore size distributions and effectives surfaces. The structure of the aerogels was measured with a SAXS apparatus and was typical of acid catalyzed aerogels. Conductivity measurements, operated on the ionogels, were carried out using an original electrical 4 electrodes set up which allowed us to study the ionic conductivity at the pore scale. The results obtained showed that one can model the electrical temporal response of the EMIMAc silica ionogel with a RLC series circuit.

Domaines

Matériaux
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Dates et versions

hal-00780352 , version 1 (24-01-2013)

Identifiants

  • HAL Id : hal-00780352 , version 1

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Nadjette Bengourna, Laurent Bonnet, Rémi Courson, Florence Despetis, Nathalie Olivi-Tran, et al.. Electrical, textural and structural characterization of EMIMAc silica ionogels and their corresponding aerogels. 2013. ⟨hal-00780352⟩
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