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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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掺杂ce基ce0.8smxy0.2-xo1.9(0≤x≤0.2)电解质的电性能
DOI: 10.3969/j.issn.1671-7627.2012.03.003, PP. 14-19
Keywords: 固体氧化物燃料电池,电解质,共掺杂ceo2,zno,烧结性能,离子电导率
Abstract:
采用固相反应法制备ce0.8smxy0.2-xo1.9zn0.01(0≤x≤0.2)电解质试样。着重考察不同掺杂配比对材料整体导电性能的影响,另外zno对材料电性能的影响也进行了探讨。采用x线衍射(xrd)、archimede排水法、热膨胀测量法和交流阻抗分析对试样的性能进行表征。结果表明:sm和y共掺杂能提高ceo2基电解质的电性能。其中1550℃烧结的ce0.8sm0.18y0.02o1.9在300～700℃具有最高的离子电导率。添加zno可以有效地降低烧结温度,在1500℃所有试样均烧结致密。zno的加入可以提高材料的晶界电性能。
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