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Influence of ZnO additive on the properties of Y-doped BaSnO3 proton conductor

机译：ZnO添加剂对掺Y的BaSnO3质子导体性能的影响

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摘要

The effects of ZnO additive on the phase formation, microstructure and electrical conduction of Y-doped BaSnCh have been investigated. The single-phase and dense BaSn0.75Y0.25O3-8 compound with 4mol% ZnO additive was successfully prepared after sintering at 1300 C, which significantly reduces the sintering temperature. The conductivities measured under dry and wet air atmospheres reveal that the bulk conductivity of BaSno.71 Yo.25Zno.o4O3-8j is much lower than that of BaSn0.75Y0.25O3-8. However, ZnO as a sintering aid does not affect the bulk conductivity. The total conductivity of BaSn0.75Y0.25O3-8 with ZnO as the sintering aid is slightly higher than that of unmodified BaSn0.75Y0.25O3-8, and reaches 2.4 x 10~3 Scnrr1 at 621 C. Therefore, this material can be used as a proton-conducting electrolyte for intermediate temperature solid oxide fuel cells.
机译：研究了ZnO添加剂对掺Y的BaSnCh的相形成，微观结构和导电性的影响。在1300℃下烧结后，成功制备了具有4mol％ZnO添加剂的单相致密BaSn0.75Y0.25O3-8化合物，大大降低了烧结温度。在干燥和潮湿空气气氛下测得的电导率表明，BaSno.71 Yo.25Zno.o4O3-8j的体电导率远低于BaSn0.75Y0.25O3-8。但是，作为烧结助剂的ZnO不影响体积电导率。以ZnO为烧结助剂的BaSn0.75Y0.25O3-8的总电导率略高于未改性的BaSn0.75Y0.25O3-8的电导率，在621 C时达到2.4 x 10〜3 Scnrr1。用作中温固体氧化物燃料电池的质子传导电解质。

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  • 来源
    《Materials Science and Engineering》 |2011年第15期|p.1178-1183|共6页
  • 作者

    Yanzhong Wang; Anthony Chesnaud; Emile Bevillon; Jinlong Yang; Guilhem Dezanneau;

  • 作者单位

    School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China Laboratoire Structure, Proprietes et Modelisation des Solides, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex, France;

    Centre des Materiaux Pierre Marie Fourt, UMR CNRS 7633, Mines ParisTech, BP87, W rue Henri Desbrueres, 91003 Evry Cedex, France;

    Laboratoire Structure, Proprietes et Modelisation des Solides, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex, France;

    School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China;

    Laboratoire Structure, Proprietes et Modelisation des Solides, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex, France;

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  • 正文语种 eng
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  • 关键词

    BaSnO3 Sintering Electrical conductivity Grain boundaries Fuel cells;

    机译：BaSnO3烧结电导率晶界燃料电池;

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