ChemInform Abstract: Preparation of Thin Layer Materials with Macroporous Microstructure for SOFC Applications (original) (raw)

Abstract

Preparation of Thin Layer Materials with Macroporous Microstructure for SOFC Applications. -Thin layer oxide materials generally used in solid oxide fuel cells and catalytic applications with fluorite and perovskite-type structures such as doped zirconia, ceria, ferrites, manganites, and NiO-YSZ composites are prepared with controlled macroporous microstructure using polymethyl methacrylate microspheres as pore formers. The materials exhibit homogeneous pore distributions with relatively high specific surface areas between 11 and 38 m 2 /g after calcination between 450 and 650°C. The samples are characterized by XRD, SEM, TEM, nitrogen adsorption, and mercury porosimetry. These film materials possibly exhibit better performance for solid oxide fuel cell application in the intermediate temperature range than usual electrodes made of polycrystalline materials. -(MARRERO-LOPEZ, D.; RUIZ-MORALES, J. C.; PENA-MARTINEZ, J.; CANALES-VAZQUEZ, J.; NUNEZ*, P.; J. Solid State Chem. 181 (2008) 4, 685-692; Dep. Quim. Inorg., Univ.

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