Fabrication of aligned porous LaNi0.6Fe0.4O3 perovskite by water based freeze casting
Por:
Soltani N., Martínez-Bautista R., Bahrami A., Huerta Arcos L., Cassir M., Chávez Carvayar J.
Publicada:
16 may 2018
Resumen:
A novel porous cathode of LaNi0.6Fe0.4O3 perovskite with aligned porosities was engineered for solid oxide fuel cells. LaNi0.6Fe0.4O3 was produced through metal nitrate and acid citric combustion method and calcined at different temperatures. The synthesized LNF at 600 °C shows specific surface area (SBET) of 24.4 m2 g-1 and an average pore size of 12.2 nm. The chemical composition and structure of LaNi0.6Fe0.4O3 synthesized at temperature 600–1400 °C, were analyzed by XRD, XPS and HRTEM. SEM observations of freeze cast nano-sized LNF showed the vertically aligned hexagonal walls. These walls contain a great value of fine pores which accelerate the gas transportation. © 2018 Elsevier B.V.
Filiaciones:
Soltani N.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 D.F., Mexico
Martínez-Bautista R.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 D.F., Mexico
Bahrami A.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 D.F., Mexico
Huerta Arcos L.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 D.F., Mexico
Cassir M.:
Institut de Recherche de Chimie Paris, IRCP, UMR 8247 du CNRS, Chimie ParisTech (PSL), ENSCP 11 rue Pierre et Marie Curie, Paris Cedex 05, France
Chávez Carvayar J.:
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 D.F., Mexico
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