Surface Coating of Reactive Layer with Inner Nano-Pores on Lantanium Gallium Based Oxide
A layer consisting of La0.6Sr0.4CoO3-d particles with inner nano-pores is coated on the La0.7Sr0.3Ga0.6Fe0.4O3-d oxide to improve the surface reaction resulting in high oxygen permeability. The La0.6Sr0.4CoO3-d particles with inner nano-pores are synthesized by an ultrasonic spray pyrolysis method. The permeated oxygen contents from air to helium gas were measured using gas chromatography after the synthesized particles were coated on the La0.7Sr0.3Ga0.6Fe0.4O3-d oxide by the conventional screen-printing. The results demonstrated that the reactive free surfaces of the nano-pores are an important factor in determining the oxygen permeation for application such as gas separation membrane and ceramic fuel cell.
Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee
K. S. Lee et al., "Surface Coating of Reactive Layer with Inner Nano-Pores on Lantanium Gallium Based Oxide", Materials Science Forum, Vols. 486-487, pp. 161-164, 2005