Energy Technological Institute ITE

San Juan de la Rambla, Spain

Energy Technological Institute ITE

San Juan de la Rambla, Spain
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Garcia-Bernabe A.,Energy Technological Institute ITE | Gil-Agusti M.,Energy Technological Institute ITE | Ortega G.,Energy Technological Institute ITE | Llovera P.,Polytechnic University of Valencia | And 4 more authors.
AIP Conference Proceedings | Year: 2010

The synthesis of polyaniline has been reported using three different oxidative reagents: ammonium persulfate, potassium iodate and potassium iodate+sodium hypochlorite. This polyaniline has been used to prepare several nanocomposites with different percentage of Montmorillonite. The DC conductivity of the nanocomposites was determined by impedance spectroscopy. The oxidative reagent that gives higher conductivity is ammonium persulfate. The temperature dependence of the conductivity was studied. © 2010 American Institute of Physics.


Garcia-Bernabe A.,Energy Technological Institute ITE | Gil-Agusti M.,Energy Technological Institute ITE | Gonzalez-Gutierrez J.P.,Energy Technological Institute ITE | Quijano-Lopez A.,Energy Technological Institute ITE
AIP Conference Proceedings | Year: 2010

Membranes based on PVdF-HFP have been prepared by solution-casting methode. Lithium perchlorate (LiClO4) and lithium trifluoromethane sulfonate (LiCF3SO3) were used as lithium salts, and ethylene carbonate and a mixture of ethylene and propylene carbonate (1:1 wt. %) as plasticizers. The ionic conductivity was determined by means of impedance spectroscopy. The Nyquist plot was fitted with a general equivalent circuit. The ionic conductivity increases to plastificizer content. The membrane consisting of 50 w% PVdF-HFP, 35w% PC+EC and 15w% LiCF3SO3 has the highest conductivity with a value of 6.892×10-3 S/cm at room temperature. © 2010 American Institute of Physics.

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