2026-05-30T02:12:43Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/284592026-02-03T11:16:06Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Dos-Santos-Gómez, Lucía author Zamudio-García, Javier author Porras-Vázquez, José Manuel author Ramírez-Losilla, Enrique author Marrero-López, David author 2020-03-19 CeO2–based thin films are prepared by spray-pyrolysis deposition from different aqueous precursor solutions containing nitrate, chloride or acetate salts. The morphology and orientation growth strongly depends on the precursor type. Acetate solutions lead to dense films with improved microstructural features, i.e. uniform film thickness and a low roughness of 1.5 nm. Films with different Gd-content (Ce1-xGdxO2-x/2, 0≤x≤0.2, CGO) are prepared from acetate salts. These films show a (200) preferred orientation growth, regardless of the substrate type, i.e. fused quartz and polycrystalline ceramics. The in-plane conductivity of the films on quartz is lower than that of the bulk material, possibly due to the different thermal mismatch between the substrate and the film. These CGO films are also evaluated as protective layers to prevent the reaction between the Zr0.84Y0.16O1.92 (YSZ) electrolyte and the La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathode. The electrode efficiency of LCSF improves greatly after the introduction of a 150 nm thin CGO interlayer https://hdl.handle.net/10630/28459 10.1016/j.jeurceramsoc.2020.03.026 Pilas de combustible Electroquímica Highly oriented and fully dense CGO films prepared by spray-pyrolysis and different precursor salts.