Textural, Structural and Electrical Characterizations of EMIMAc Silica Ionogels and Their Corresponding Aerogels


  •  Nadjette Bengourna    
  •  Florence Despetis    
  •  Laurent Bonnet    
  •  R'emi Courson    
  •  Pierre Solignac    
  •  Hamid Satha    
  •  Nathalie Olivi-Tran    

Abstract

Silica ionogels were synthesized from tetramethoxysilane (TMOS ),methyltrimethoxysilane (MTMS ) and 1-ethyl-2-methylimidazolium Acetate (EMIMAc: Ionic Liquid) in different proportions .The textural characterizations showed an effect of these concentrations on the corresponding aerogels: pore size distributions and effective surfaces. The structure of the aerogels was measured with a SAXS (Small- Angle XRay Scattering) apparatus and was typical of acid catalyzed aerogels. Conductivity voltage measurements, operated on the ionogels, were carried out using an electrical 4 wire-electrodes set up. The electrical voltage temporal response of the EMIMAc silica ionogel was modelled by a RLC series circuit which characteristics depended on the synthesis.



This work is licensed under a Creative Commons Attribution 4.0 License.
  • ISSN(Print): 1916-9639
  • ISSN(Online): 1916-9647
  • Started: 2009
  • Frequency: semiannual

Journal Metrics

Google-based Impact Factor (2017): 3.90
h-index (November 2017): 17
i10-index (November 2017): 33
h5-index (November 2017): 12
h5-median (November 2017): 19

Learn more

Contact