Szczegóły publikacji
Opis bibliograficzny
High Cu content $LaNi_{1-x}Cu_{x}O_{3-\delta}$ perovskites as candidate air electrode materials for Reversible Solid Oxide Cells / Anna NIEMCZYK, Kun ZHENG, Kacper CICHY, Katarzyna BERENT, Kathrin Küster, Ulrich Starke, Bisham Poudel, Bogdan Dabrowski, Konrad ŚWIERCZEK // International Journal of Hydrogen Energy ; ISSN 0360-3199. — 2020 — vol. 45 iss. 53, s. 29449–29464. — Bibliogr. s. 29461–29464, Abstr. — Publikacja dostępna online od: 2020-08-21. — K. Zheng, K. Świerczek - dod. afiliacja: AGH Centre of Energy
Autorzy (9)
- AGHNiemczyk Anna
- AGHZheng Kun
- AGHCichy Kacper
- AGHBerent Katarzyna
- Küster Kathrin
- Starke Ulrich
- Poudel Bisham
- Dabrowski Bogdan
- AGHŚwierczek Konrad
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 130817 |
|---|---|
| Data dodania do BaDAP | 2020-10-28 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ijhydene.2020.07.267 |
| Rok publikacji | 2020 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | International Journal of Hydrogen Energy |
Abstract
High Cu content perovskite-type LaNi1-xCuxO3-δ oxides are evaluated as alternative air electrode materials for Solid Oxide Cells. Auto-combustion synthesis allowed to obtain fine oxide powders up to a Cu content of x = 0.75 under ambient pressure. Investigations of the crystal structure, oxygen deficiency, chemical and thermal stability, as well as transport properties reveal satisfactory characteristics, with high total electrical conductivity and high concentration of oxygen vacancies at elevated temperatures. LaNi1-xCuxO3-δ-based electrode layers show low polarization resistance values in La0.8Sr0.2Ga0.8Mg0.2O3-δ-based symmetrical cells. The lowest values for Cu-rich compositions at 800 °C are 0.056 Ω cm−2 for LaNi 0.5Cu0.5O3-δ and 0.054 Ω cm−2 for LaNi0.25Cu0.75O3-δ with La0.2Ce0.8O3-δ buffer layer. For the reversible cell with LaNi0.5Cu0.5O3-δ air electrode, approx. 870 mW cm−2 power density output at 900 °C is obtained when fueled with wet H2, as well as over 3 A cm−2 current density at 2 V in the electrolysis mode.
