Magnetron Sputtering of Gadolinium-doped Ceria Electrolyte for Intermediate Temperature Solid Oxide Fuel Cells

Reactive magnetron sputtering was used for deposition of thin Gd-doped ceria (GDC) films on porous NiO–YSZ (nickel oxide–yttria stabilized zirconia) substrates. X-ray diffraction and scanning electron microscopy were used to study the effect of cathode peak power density on 5–7 μm-thick film’s micro...

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Bibliographic Details
Published in:International journal of electrochemical science 2019-01, Vol.14 (1), p.575-584
Main Authors: Solovyev, Andrey A., Rabotkin, Sergey V., Shipilova, Anna V., Ionov, Igor V.
Format: Article
Language:English
Subjects:
Electrochemical performance
Gadolinium-doped ceria
Magnetron sputtering
Microstructure
SOFC
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Summary:Reactive magnetron sputtering was used for deposition of thin Gd-doped ceria (GDC) films on porous NiO–YSZ (nickel oxide–yttria stabilized zirconia) substrates. X-ray diffraction and scanning electron microscopy were used to study the effect of cathode peak power density on 5–7 μm-thick film’s microstructure and surface morphology. It was shown that peak power density (changed from 52 to 490 W/cm2) has an effect on the crystallite size, microstrains and texture coefficient of the GDC electrolyte. Increasing peak power density suppresses the columnar structure of deposited films and leads to formation of more continuous and denser films. As a result, anode-supported single cells with sputtered at room temperature GDC electrolyte were fabricated and demonstrated maximum power density of 1.07 W/cm2 at 750 °C.
ISSN:1452-3981
1452-3981
DOI:10.20964/2019.01.03