Szczegóły publikacji
Opis bibliograficzny
Exploiting Zn and Zr synergy in co-doped $Sr(Fe_{1−x}Mo_{x})O_{3−\delta}$ – versatile Co-free electrode materials for solid oxide fuel cells / Margarita NOWAKOWSKA, Juliusz DĄBROWA, Marek ZAJUSZ, Jan ADAMCZYK, Katarzyna BERENT, Rotraut Merkle, Grzegorz Gazdowicz, Konrad ŚWIERCZEK // Journal of Materials Chemistry . A ; ISSN 2050-7488. — 2026 — vol. 14 iss. 9, s. 5232–5248. — Bibliogr. s. 5245-5248, Abstr. — Publikacja dostępna online od: 2025-12-24. — K. Świerczek - dod. afiliacja: AGH Centre of Energy
Autorzy (8)
- AGHNowakowska Margarita
- AGHDąbrowa Juliusz
- AGHZajusz Marek
- AGHAdamczyk Jan
- AGHBerent Katarzyna
- Merkle Rotraut
- Gazdowicz Grzegorz
- AGHŚwierczek Konrad
Dane bibliometryczne
| ID BaDAP | 166623 |
|---|---|
| Data dodania do BaDAP | 2026-03-25 |
| Tekst źródłowy | URL |
| DOI | 10.1039/d5ta07823g |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Materials Chemistry, A |
Abstract
Possessing high versatility, excellent stability over a wide range of oxygen partial pressures, and high catalytic activity, the perovskites from the Sr(Fe1−xMox)O3−δ (SFM) group have attracted a lot of attention, particularly with respect to the technology of conventional solid oxide fuel cells (SOFCs) and symmetrical solid oxide fuel cells (S-SOFCs). However, their performance, especially as air electrodes, is still lacking compared to those of more specialized, dedicated cathodes. In this work, co-doping of the conventional SrFe0.75Mo0.25O3−δ material with Zn and Zr is proposed to improve its catalytic capabilities through increased lattice basicity and oxygen nonstoichiometry. The impact of dopants is studied for the Sr(Fe0.75Mo0.25)1−2xZnxZrxO3−δ (x ≤ 0.2) series under both oxidizing and reducing atmospheres, including the evolution of the structure, oxygen non-stoichiometry, and transport properties. Evaluation of cathodic polarization resistance Rp shows that the selected SrFe0.6Mo0.2Zn0.1Zr0.1O3−δ material is characterized by superior cathodic performance compared to SFM, with an Rp value of 0.15 Ω cm2 at ca. 740 °C and a power density of a full cell equal to 978 mW cm−2 at 900 °C. This performance, excellent for a Co-free material, makes Sr(Fe0.75Mo0.25)1−2xZnxZrxO3−δ extremely promising candidate materials for SOFC/S-SOFC technology.
