Dielectric and proton conductivity potential of sulfonated silica-enhanced chitosan/butylimidazolium tetrafluoroborate membrane electrolytes
Yazarlar (5)
İlkay Güzel
Yalova Üniversitesi, Türkiye
Yalova Üniversitesi, Türkiye
Arzunur Sıla Yetiş
Yalova Üniversitesi, Türkiye
Yalova Üniversitesi, Türkiye
Ufuk Abacı Kocaeli Üniversitesi, Türkiye
Doç. Dr. Hikmet OKKAY Yalova Üniversitesi, Türkiye
Doç. Dr. Mesut YILMAZOĞLU Yalova Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Colloids and Surfaces A Physicochemical and Engineering Aspects (Q2) | ||
| Dergi ISSN | 0927-7757 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 12-2025 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-12-2025 |
| Cilt / Sayı / Sayfa | 727 / 1 / 138254–0 | DOI | 10.1016/j.colsurfa.2025.138254 |
| Makale Linki | https://doi.org/10.1016/j.colsurfa.2025.138254 | ||
| Özet |
| In this work, chitosan (CS)-based composite polymer electrolytes were developed by incorporating n-butylimidazolium tetrafluoroborate ionic liquid (ButIm-BF4, IL) and sulfonated silica (sSiO2) to achieve efficient anhydrous proton conduction. Composite membranes were prepared via solution casting method and characterized by FTIR, XRD, SEM, and TGA for structural, morphological and thermal evaluations. Proton conductivity tests in the 300-430 K and 20 Hz-1 MHz ranges revealed that the CS-IL-S(7.5) membrane, containing 7.5 wt.% sSiO2, exhibited the highest proton conductivity (σ) (1.2 mS/cm) corresponding to ~330-fold higher than neat CS (3.65×10⁻3 mS/cm) and ~6.5-fold higher than CS-IL (1.84×10⁻1 mS/cm). Dielectric analyses demonstrated a maximum dielectric constant (ε′) of 2.19×106 at 20 Hz and 300 K for CS-IL-S(7.5). A loss tangent (tanδ) of ~7.6 with an ultrafast relaxation time (τ) of 3.98 … |
| Anahtar Kelimeler |
| Anhydrous proton conductivity | Chitosan (CS) | Dielectric relaxation | Ionic liquid | N-butylimidazolium tetrafluoroborate (ButIm-BF4) | Polymer electrolyte membrane | Sulfonated silica (sSiO2) |
Science Direct
Dielectric and proton conductivity potential of sulfonated silica-enhanced chitosan/butylimidazolium tetrafluoroborate membrane electrolytes
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| Google Scholar | 1 |
| Web of Science | 1 |