Increase of Solid Polymer Electrolyte Ionic Conductivity Using Nano-SiO2 Synthesized from Sugarcane Bagasse as Filler

Yatim Lailun Ni'mah; Zakkiyyah Hidayatul Muhaiminah; Suprapto Suprapto

doi:10.3390/polym13234240

Increase of Solid Polymer Electrolyte Ionic Conductivity Using Nano-SiO₂ Synthesized from Sugarcane Bagasse as Filler

Polymers (Basel). 2021 Dec 3;13(23):4240. doi: 10.3390/polym13234240.

Authors

Yatim Lailun Ni'mah¹, Zakkiyyah Hidayatul Muhaiminah¹, Suprapto Suprapto¹

Affiliation

¹ Department of Chemistry, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia.

Abstract

The synthesize of solid polymer electrolyte (SPE) based on polyethylene oxide (PEO), NaClO₄ and nano-SiO₂ was carried out by solution cast technique. Nano-SiO₂ was synthesized from sugarcane bagasse using sol-gel method. FTIR analysis was carried out to investigate the bonding between nano-SiO₂ and PEO/NaClO₄. The morphology of the SPE was characterized using SEM. XRD and DSC analysis showed that SPE crystallinity decreased as nano-SiO₂ concentration was increased. Mechanical analyses were conducted to characterize the SPE tensile strength and elongation at break. EIS analysis was conducted to measure SPE ionic conductivity. The PEO/NaClO₄ SPE with the addition of 5% nano-SiO₂ from sugarcane bagasse at 60 °C produced SPE with the highest ionic conductivity, 1.18 × 10^-6 S/cm. It was concluded that the addition of nano-SiO₂ increased ionic conductivity and interface stability at the solid polymer electrolyte-PEO/NaClO₄.

Keywords: NaClO4; Nano-SiO2; PEO; sodium ion; solid polymer electrolyte.