Synthesis and properties of copper and samarium doped yttria-bismuth oxide powders and membranes

Y. Zeng; Y. S. Lin

doi:10.1023/A:1004858615232

Synthesis and properties of copper and samarium doped yttria-bismuth oxide powders and membranes

Y. Zeng, Y. S. Lin

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Powders of Bi_1.5 Y_0.5-yCu_yO₃-δ (BYC) and Bi_1.5 Y_0.3Sm_0.2. O₃ 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.

Original language	English (US)
Pages (from-to)	1271-1276
Number of pages	6
Journal	Journal of Materials Science
Volume	36
Issue number	5
DOIs	https://doi.org/10.1023/A:1004858615232
State	Published - Mar 1 2001
Externally published	Yes

ASJC Scopus subject areas

Mechanics of Materials
Ceramics and Composites
Mechanical Engineering
Polymers and Plastics
General Materials Science
Materials Science (miscellaneous)

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abstract = "Powders of Bi1.5 Y0.5-yCuyO3-δ (BYC) and Bi1.5 Y0.3Sm0.2. O3 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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AU - Zeng, Y.

AU - Lin, Y. S.

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AB - Powders of Bi1.5 Y0.5-yCuyO3-δ (BYC) and Bi1.5 Y0.3Sm0.2. O3 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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Synthesis and properties of copper and samarium doped yttria-bismuth oxide powders and membranes

Abstract

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