Abstract
Formation of perovskite-type oxides on the surface of fluorite-type oxides by high temperature chemical reaction and their electrochemical properties were studied. A dense and tightly contacted thin layer of BaZrO3, SrZrO3, CaZrO3 and BaCeO3, SrCeO3-based solid solution could be formed on yttrium stabilized zirconia and yttrium doped ceria, respectively. The electromotive phenomena as an electrolyte of the gas cell using the ceramics behaved in a different manner from that of the non-coated cell. Using this character, new type hydrogen-sensing devices with the standard electrode of oxygen can be fabricated.
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