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Title of article :
Low-temperature preparation of dense (Gd,Ce)O2−δ–Gd2O3 composite buffer layer by aerosol deposition for YSZ electrolyte-based SOFC
Author/Authors :
Choi، نويسنده , , Jongjin and Park، نويسنده , , Dong-Soo and Seong، نويسنده , , Byeong-Geun and Bae، نويسنده , , Hong-Youl، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
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Abstract :
The (Gd0.1Ce0.9)O2−δ (GDC)–Gd2O3 composite buffer layer was fabricated on yttria stabilized zirconia (YSZ) electrolyte by aerosol deposition for usage as diffusion barrier layer between YSZ and (La0.6Sr0.4)(Co0.2Fe0.8)O3−δ (LSCF)–GDC composite cathode. The deposited composite buffer layer was quite dense in nature and effectively prevented the formation of SrZrO3 and La2Zr2O7 interlayer with low conductivity at the interfaces. The cellʹs I–V performance was enhanced with an increase in the GDC content in the composite buffer layer. The cell containing composite buffer layer showed maximum power density of up to 1.74 W/cm2 at 750 °C, which was ∼30% higher than that of the cell containing GDC buffer layer prepared using conventional process.
Keywords :
Aerosol deposition , SOFC , GDC , Gd2O3 , Buffer layer
Journal title :
International Journal of Hydrogen Energy
Journal title :
International Journal of Hydrogen Energy
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