Proton pathways via free volumes: A positron annihilation lifetime spectroscopy (PALS) investigation of proton conductivity in SPEEK-PEG-TMOS composites
Yazarlar (6)
Doç. Dr. Mesut YILMAZOĞLU Yalova Üniversitesi, Türkiye
Ufuk Abacı Kocaeli Üniversitesi, Türkiye
Doç. Dr. Hikmet OKKAY Yalova Üniversitesi, Türkiye
Ayşe Yumak Yahşi Marmara Üniversitesi, Türkiye
Cumali Tav Marmara Üniversitesi, Türkiye
Uğur Yahşi Marmara 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 | 04-2024 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-04-2024 |
| Cilt / Sayı / Sayfa | 687 / 1 / 133558–0 | DOI | 10.1016/j.colsurfa.2024.133558 |
| Makale Linki | https://doi.org/10.1016/j.colsurfa.2024.133558 | ||
| Özet |
| This study investigates the ionic conductivity and dielectric properties of SPEEK-PEG-TMOS solid-state polymer electrolytes across a broad frequency spectrum (0.1–1000 kHz). Proton transport mechanisms were explored over an extensive temperature range, and positron annihilation lifetime spectroscopy (PALS) was employed to elucidate the roles of free volumes in the transport mechanism. At elevated temperatures, sulfonic acid groups and free volume defects predominantly govern the conductivity in all polymer electrolytes. PEG incorporation significantly improved proton conductivity at low temperatures, while the presence of TMOS and higher PEG content have elevated conductivity at higher temperatures. Proton conductivity mechanisms at elevated temperatures are influenced by SPEEK's intrinsic proton conductivity, PEG's plasticizing effect, acid-base interactions, and the presence of free volumes … |
| Anahtar Kelimeler |
| Free volume | PALS | PEG | Proton conductivity | SPEEK |
Science Direct
Proton pathways via free volumes: A positron annihilation lifetime spectroscopy (PALS) investigation of proton conductivity in SPEEK-PEG-TMOS composites
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Google Scholar | 10 |
| Web of Science | 9 |
| Scopus | 9 |