A sustainable construction of multilayer La–Fe–La MOF supercapacitor electrodes using PET-derived BDC linkers
Ionics, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s11581-026-07235-2
- Dergi Adı: Ionics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: Energy storage, La-MOFs, Recycling waste plastics
- Erciyes Üniversitesi Adresli: Evet
Özet
The growing demand for high-efficiency energy storage systems has driven the search for advanced electrode materials with improved power and energy densities. Metal–organic frameworks (MOFs) have recently attracted significant attention owing to their high porosity, large surface areas, rich redox-active metal centers, and favorable ion transport properties. In this study, a sandwich-type La–Fe–La multilayer La-based metal–organic framework (MOF) was rationally designed, in which an Fe-containing MOF layer is intercalated between two La-based MOF layers, to enhance electrochemical performance compared to a conventional La-MOF electrode. Structural and morphological analyses confirmed that the multilayer configuration promotes a more organized and accessible framework with abundant electroactive sites. As a result, the multilayer MOF electrode exhibited an approximately fourfold increase in specific capacitance, delivering 319.62 F g⁻¹ at 1 A g⁻¹, compared to 77,13 F g⁻¹ for the pristine La-MOF. Moreover, the multilayer MOF demonstrated improved cycling stability, retaining 86.67% of its initial capacitance after 5000 charge–discharge cycles. These findings indicate that multilayer MOF engineering is an effective strategy for enhancing charge storage capability and structural durability, making such materials promising candidates for next-generation supercapacitor applications.