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[期刊论文]

固相反应后复合电解质BaCe_(0.8)Y_(0.2)O_(2.9)-Ce_(0.8)Gd_(0.2)O_(1.9)的化学稳定性研究

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author:

肖祯照 (肖祯照.) [1] | 许聪颖 (许聪颖.) [2] | 余守江 (余守江.) [3] | Unfold

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PKU CSCD

Abstract:

采用溶胶-凝胶燃烧法和机械混合法制备摩尔比为1∶1的BaCe_(0.8)Y_(0.2)O_(2.9)(BCY)-Ce_(0.8)Gd_(0.2)O_(1.9)(GDC)复合粉末,并在1550℃烧结保温5 h获得复合电解质片。对BCY-GDC复合电解质的化学稳定性以及电化学性能稳定性进行研究。结果表明:BCY-GDC复合电解质在1550℃烧结时会发生固相反应,形成以BaCe_(1-x-y)Gd_xY_yO_(3-α)相为主的显微组织。固相反应后的BCY-GDC复合电解质在700℃3%CO_2和沸水中的稳定性高于单相BCY;基于固相反应后BCY-GDC复合电解质的单电池在700℃下20 h测试时间...

Keyword:

BaCe0.8Y0.2O2.9-Ce0.8Gd0.2O1.9 化学稳定性 固体氧化物燃料电池 复合电解质 电化学性能

Community:

  • [ 1 ] 福州大学材料科学与工程学院

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Source :

人工晶体学报

Year: 2016

Issue: 06

Volume: 45

Page: 1549-1554

Cited Count:

WoS CC Cited Count: 0

30 Days PV: 1

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