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Ba(Zr0.63Ce0.27)Y0.1O3-δ/ZnO质子导体的制备及性能研究

发表时间:2010-10-31  浏览量:1583  下载量:693
全部作者: 高沿英,郭瑞松,邓雅平
作者单位: 天津大学材料科学与工程学院
摘 要: 采用传统的高温固相法制备Ba(Zr0.63Ce0.27)Y0.1O3-δ(BZCY)前躯体,通过优化烧结助剂ZnO的添加量提高试样的烧结性能及电化学性能。ZnO能够与前驱体发生固溶取代反应,有效地提高烧结性能。随着ZnO添加量的增大,试样烧结致密度提高。当ZnO的物质的量添加量为2%(BZCY2)时,试样具有最高的直流电导率,800℃在湿H2中电导率可达9.27×10-3 S/cm.组装成H2/air燃料电池后,最高功率密度可达12.4 mW/cm2.
关 键 词: 材料学;BaZrO3;BaCeO3;质子电导率;烧结助剂
Title: Fabrication and properties of Ba(Zr0.63Ce0.27)Y0.1O3-δ/ZnO proton conductors
Author: GAO Yanying, GUO Ruisong, DENG Yaping
Organization: School of Materials Science and Engineering, Tianjin University
Abstract: The precursor Ba(Zr0.63Ce0.27)Y0.1O3-δ (BZCY) were synthesized by the conventional solid state reaction route. The sintering behavior and electrical conductivity could be improved by optimization the addition content of ZnO as sintering aids. ZnO was able to form a solid solution with BZCY, resulting in the enhancement of sinterability. As increasing the amount of ZnO, sintered density of the samples increased. When the content amount of substance of ZnO was 2% (BZCY2), the sintered sample had the highest DC conductivity, reaching 9.27×10-3 S/cm at 800℃ in wet H2 atmosphere. The maximum power density was up to 12.4 mW/cm2 at 800℃ with an electrolyte support configuration fuel cell.
Key words: materials science; BaZrO3; BaCeO3; proton conductivity; sintering aids
发表期数: 2010年10月第20期
引用格式: 高沿英,郭瑞松,邓雅平. Ba(Zr0.63Ce0.27)Y0.1O3-δ/ZnO质子导体的制备及性能研究[J]. 中国科技论文在线精品论文,2010,3(20):2085-2089.
 
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