Homogenous mixtures of Ce0.8Gd0.2O1.9 (GDC) and La0.6Sr0.4Co0.2Fe0.8O3 (LSCF6428) nanopowders were successfully synthesized using radio frequency (RF) induction plasma by axial injection of a solution. Two kinds of powders with different mass ratio of GDC/LSCF, such as 3/7 and 6/4, were obtained. The crystallinity and morphological features of the powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The particles are almost globular in shape with a diameter lower than 100nm and the BET specific areas around 20m2/g. In addition, suspensions, made with the composite nanopowders and ethanol, were used to deposit some cathode coatings using suspension plasma spray method. Several initial results of the coatings are also presented. The coatings are homogeneous and porous with cauliflower structures.

cerium gadolinium, induction plasma spraying, lanthanum strontium cobalt iron oxide coating, nanocomposites, nanopowder, scanning electron microscopy, solid oxide fuel cells, transmission electron microscopy, X-ray diffraction
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2010
DVS Media GmbH
Topics
Solid oxide fuel cells Oxide-based ceramics Plasma spray coating Scanning electron microscopy Transmission electron microscopy Nanocomposites X-ray diffraction
Issue Section:
Poster Session: Solid Oxide Fuel Cell Applications
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