Szczegóły publikacji
Opis bibliograficzny
Highly active and stable oxygen electrode $PrBaCo_{2}O_{5+\delta^{-}}Ba_{2}CoWO_{6}$ enabled by In Situ formed misfit dislocation interface for reversible solid oxide cell / Min Zhang, Jiayue Liu, Zhihong Du, Yang He, Yue Gong, Zhipeng Sun, Boyang FU, Konrad ŚWIERCZEK, Jianrong Zeng, Hailei Zhao // Applied Catalysis. B, Environment and Energy ; ISSN 0926-3373. — 2025 — vol. 361 art. no. 124669, s. 1-9. — Bibliogr. s. 8-9, Abstr. — Publikacja dostępna online od: 2024-10-02
Autorzy (10)
- Zhang Min
- Liu Jiayue
- Du Zhihong
- He Yang
- Gong Yue
- Sun Zhipeng
- AGHFu Boyang
- AGHŚwierczek Konrad
- Zeng Jianrong
- Zhao Hailei
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 155821 |
|---|---|
| Data dodania do BaDAP | 2024-10-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.apcatb.2024.124669 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Applied Catalysis, B, Environmental |
Abstract
The energy conversion efficiency and durability of the reversible solid oxide cell (RSOC) is restricted by the development of highly active and stable oxygen electrode. Herein, an in-situ formed composite PrBaCo2O5+δ-Ba2CoWO6 oxygen electrode is proposed, which consists of a highly active A-site double perovskite (A-DP) phase and a stable B-site double perovskite (B-DP) phase. Misfit dislocation interface is formed between these two phases, exerting lattice tensile stress on the A-DP phase, which enhances catalytic activity and inhibits Ba segregation. Additionally, the B-DP phase suppresses lattice expansion of A-DP phase through the dislocation interface, thereby improving thermo-mechanical stability. Consequently, the composite electrode demonstrates a low polarization resistance of 0.056 Ω cm2 at 650 °C, impressive stability at 650 °C for 500 h in symmetrical cell tests, and excellent thermal-mechanical stability under 29 thermal cycles. A maximum power density of 0.75 W cm−2 and an electrolysis current density of 0.84 A cm−2 at 1.3 V were achieved at 650 °C by the composite electrode on a 260 μm-electrolyte supported cell configuration, which surpass most of the reported oxygen electrode materials. Furthermore, the cell exhibits excellent operational stability, with low degradation rates of 0.49 × 10−1 mV h−1 and 1.5 × 10−1 mV h−1 in fuel cell and electrolysis cell modes, respectively. This work offers an effective method for designing highly active and stable oxygen electrodes for RSOCs.
