Synthesis and properties of copper and samarium doped yttria-bismuth oxide powders and membranes
Source abstract
Abstract
Powders of Bi1.5Y0.5−yCuyO3−δ (BYC) and Bi1.5Y0.3Sm0.2O3 in the fluorite phase structure were prepared by the citrate method. The chemical reactions involved in the synthesis of these powders were proposed and verified experimentally. Dense BYC and BYS membranes were prepared from the powders by the press and sintering method. The optimum conditions for powder preparation as well as for membrane fabrication were determined in this study with the aid of various characterization methods. The BYC and BYS membranes were gas-tight to helium. These doped bismuth-yttrium (BY) oxide membranes show similar ionic conductivity but much higher oxygen permeability (electronic conductivity) as compared to the undoped BY membrane.
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Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Catalysis and Oxidation Reactions · Nuclear Materials and Properties
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References (14)
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