PEO/Starch-Nanocrystals Based Solid Polymer Electrolyte Membranes for Magnesium Ion Conducting Applications
Keywords:solid polymer electrolytes, nanocomposites, bioorganic filler, starch nanocrystals (SNCs), electrical impedance spectroscopy, magnesium ionic conductivity, microstructural properties
PEO/SNCs based nanocomposite electrolyte membrane complexed with MgBr2 salt (15 wt.%) was fabricated following conventional solution casting technique. The effect of incorporation of salt ions on microstructural properties of host matrix of PEO/SNCs were investigated by means of XRD, FTIR, DSC studies. The modifications in the nature of diffraction peaks and vibrational modes of nanocomposites revealed the formation of strong hydrogen bonding and cross links between SNCs and salt ions. A decrease of melting and glass transition temperatures of host matrix was observed as a result of salt doping. The complex electrochemical impedance measurements were carried out in the applied frequency range of 0.1 Hz – 1 MHz and in the temperature range of 303–373 K. The PEO/SNCs composite complexed with 15 wt.% salt showed room temperature ionic conductivity of 7.8 × 10–8 S/cm promising for soft electronics, solid state ionics and sensing applications.
How to Cite
LicenseCopyright (c) 2023 Proceedings of the Bulgarian Academy of Sciences
Copyright (c) 2022 Proceedings of the Bulgarian Academy of Sciences
Copyright is subject to the protection of the Bulgarian Copyright and Associated Rights Act. The copyright holder of all articles on this site is Proceedings of the Bulgarian Academy of Sciences. If you want to reuse any part of the content, please, contact us.