Repozytorium publikacji - Politechnika Gdańska

In this paper, thin perovskite layers between cathode material of solid oxide fuel cells and gadolinia-doped ceria buffer layer are investigated. Thin layers made of LaNi0.6Fe0.4O3-δ (LNF), La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF), or SrTi0.65Fe0.35O3-δ (STF) were symmetrically deposited by spin coating method from metallo-organic polymer precursors on a Ce0.8Gd0.2O2-δ (CGO) substrate. Porous and about 40-μm-thick LNF cathodes were deposited on both sides of the substrate and sintered at 1100 °C. Different thicknesses of the thin perovskite layer were investigated in order to find the most effective one and to better understand its influence on the cathode/electrolyte interface. It was found that approximately 150 nm LNF or LSCF layer is sufficient to minimize interface resistance and improve cathode reproducibility. It was concluded that the thin perovskite layer increases contact area and improves the oxygen ion transport between the cathode and electrolyte without influencing the oxygen reduction reaction mechanism.

Autorzy

• Aleksander Chrzan link otwiera się w nowej karcie ,
• dr hab. inż. Jakub Karczewski link otwiera się w nowej karcie ,
• prof. dr hab. inż. Maria Gazda link otwiera się w nowej karcie ,
• Dagmara Grudzień link otwiera się w nowej karcie ,
• prof. dr hab. inż. Piotr Jasiński link otwiera się w nowej karcie