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

Miguel Iban Delgado-Rosero; Nori Magali Jurado-Meneses; Miguel Ángel Meléndez-Lira

doi:10.17533/udea.redin.n83a06

Autores/as

Miguel Iban Delgado-Rosero Universidad del Tolima https://orcid.org/0000-0003-4620-3623
Nori Magali Jurado-Meneses Universidad del Tolima
Miguel Ángel Meléndez-Lira Instituto Politécnico Nacional de México https://orcid.org/0000-0001-9799-8337

DOI:

https://doi.org/10.17533/udea.redin.n83a06

Palabras clave:

compositos, espectroscopía Raman, espectroscopía infrarroja, conductividad iónica

Resumen

Se sintetizaron comp ó sitos formados entre polióxido de etileno (PEO) y trifluoroacetato de sodio (PEO10CF3COONa) con diferentes concentraciones de óxido de aluminio (Al2O3). Los comp ó sitos fueron caracterizados por espectroscopía infrarroja (IR), espectroscopía Raman, difracción de rayos X (XRD) y microscopía de fuerza atómica (AFM). Las combinaciones del electrolito sólido PEO10CF3COONa con diferentes concentraciones de Al2O3, 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 adicion ó alúmina. Se observó un incremento en la raíz cuadrática media de la rugosidad (R RMS ) obtenida por microscopia de fuerza atómica cuando se adicionó Al2O3. 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 CF3COONa y Al2O3 , fueron atribuidos a interacciones entre el electrolito y el relleno Al2O3.

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Biografía del autor/a

Miguel Iban Delgado-Rosero, Universidad del Tolima

Grupo de Investigación de Materiales Semiconductores y Superiónicos, Departamento de Física, Facultad de Ciencias.

Nori Magali Jurado-Meneses, Universidad del Tolima

Grupo de Investigación de Materiales Semiconductores y Superiónicos, Departamento de Física, Facultad de Ciencias.

Miguel Ángel Meléndez-Lira, Instituto Politécnico Nacional de México

Departamento de Física, Centro de Investigaciones y Estudios Avanzados del Instituto Politécnico Nacional.

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