Ionic Conductivity in the Polymer Electrolytes PEO/CF3COONa

Delgado, I.; Castillo, José; Chacón, M.; Vargas, R.A.

doi:10.1002/1521-3951(200007)220:1<625::aid-pssb625>3.0.co;2-p

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…For instance, SPEs formed by poly(ethylene oxide) (PEO) and alkaline metallic salts such as Na + , K + and Li + , show a reduction of the crystalline phase and an increase in dissolved ions mobility. These changes lead to systems with relatively high ionic conductivity values (σ ~ 1 × 10 −5 S cm −1 ) [4,5]. However, the need for even higher conductivity values, such as those required in various technological applications, has led to strategies to further increase the amorphous phase by also adding plasticizers and/or ceramic materials [6,7].…”

Section: Introductionmentioning

confidence: 99%

Thermal Properties of Composite Polymer Electrolytes Poly(Ethylene Oxide)/Sodium Trifluoroacetate/Aluminum Oxide (PEO)10CF3COONa + x wt.% Al2O3

2019

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Polymeric membranes of poly(ethylene oxide) (PEO) and sodium trifluoroacetate (PEO:CF3COONa) combined with different concentrations of aluminum oxide (Al2O3) particles were analyzed by impedance spectroscopy, differential scanning calorimetry (DSC) and thermogravimetry (TGA). DSC results show changes in the crystalline fraction of PEO when the concentration of Al2O3 is increased. TGA analysis showed thermal stability up to 430 K showing small changes with the addition of alumina particles. The decrease in crystalline fraction for membranes with low Al2O3 concentration is associated with the increase in conductivity of (PEO)10CF3COONa + x wt.% Al2O3 composites.

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Section: Introductionmentioning

confidence: 99%

Thermal Properties of Composite Polymer Electrolytes Poly(Ethylene Oxide)/Sodium Trifluoroacetate/Aluminum Oxide (PEO)10CF3COONa + x wt.% Al2O3

2019

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Protonic conductivity and thermal properties of cross-linked PVA/TiO2 nanocomposite polymer membranes

Aparicio

Vargas

Bueno

2019

Journal of Non-Crystalline Solids

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Structural and vibrational studies on composites polymer electrolytes (PEO)10CF3COONa + x wt.% Al2O3

Delgado-Rosero

Jurado-Meneses

Meléndez‐Lira

2017

Rev. Fac. Ing. Univ. Antioquia

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ABSTRACT:Composites formed by combinations of polyethylene oxide (PEO) and sodium trifluoroacetate (CF 3 COONa) with different aluminum oxide (Al 2 O 3 ) concentrations were synthetized. Infrared (IR), Raman spectroscopy, X ray diffraction (XRD) and atomic force microscopy (AFM) analyses, were performed to characterize the composites. Changes on the XRD intensity peaks, and variations in intensity and position of some peaks in Raman and IR spectroscopy were observed for different concentrations of added Al 2 O 3 . The decrease in the XRD peaks of the PEO when it is combined with the salt, revealed that crystallinity in polymer was reduced, being lower when the alumina is added. The increase in roughness root medium square (R RMS ) observed by AFM when Al 2 O 3 was added, agree with reduction in crystallinity observed with XRD studies. Changes in the structure of PEO showed in the absorption lines IR and Raman, due to addition of CF 3 COONa salt and Al 2 O 3 filler, have been attributed to the interactions between the electrolyte and the filler. RESUMEN:Se sintetizaron compósitos formados entre polióxido de etileno (PEO) y trifluoroacetato de sodio (PEO 10 CF 3 COONa) con diferentes concentraciones de óxido de aluminio (Al 2 O 3 ). Los compósitos fueron caracterizados por espectroscopía infrarroja (IR), espectroscopía Raman, difracción de rayos X (XRD) y microscopía de fuerza atómica (AFM). Las combinaciones del electrolito sólido PEO 10 CF 3 COONa con diferentes concentraciones de Al 2 O 3 , mostraron cambios en la intensidad de los picos de XRD, así como cambios en la intensidad y posición de algunos picos de IR y Raman. El decrecimiento de los picos del PEO en XRD, cuando este fue combinado con la sal, reveló que la cristalinidad del polímero se redujo, siendo más baja cuando se le adicionó alúmina. Se observó un incremento en la raíz cuadrática media de la rugosidad (R RMS ) obtenida por microscopia de fuerza atómica cuando se adicionó Al 2 O 3. Este incremento está en concordancia con la reducción de la cristalinidad observada con estudios de XRD. Los cambios en la estructura del PEO mostrados en las líneas de absorción de IR y Raman, debidos a la adición de CF 3 COONa y Al 2 O 3 , fueron atribuidos a interacciones entre el electrolito y el relleno Al 2 O 3 .

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Ionic Conductivity in the Polymer Electrolytes PEO/CF3COONa

Cited by 3 publications

References 9 publications

Thermal Properties of Composite Polymer Electrolytes Poly(Ethylene Oxide)/Sodium Trifluoroacetate/Aluminum Oxide (PEO)10CF3COONa + x wt.% Al2O3

Thermal Properties of Composite Polymer Electrolytes Poly(Ethylene Oxide)/Sodium Trifluoroacetate/Aluminum Oxide (PEO)10CF3COONa + x wt.% Al2O3

Protonic conductivity and thermal properties of cross-linked PVA/TiO2 nanocomposite polymer membranes

Structural and vibrational studies on composites polymer electrolytes (PEO)10CF3COONa + x wt.% Al2O3

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