Oxygen exchange kinetics of La_0.6Sr_0.4CoO_3-δ affected by changes of the surface composition due to chromium and silicon poisoning

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• 作者：E. Bucher^a ; ^{edith.bucher@unileoben.ac.at} ; C. Gspan^b ; T. Hö ; schen^c ; F. Hofer^b ; W. Sitte^a
• 关键词：La0.6Sr0.4CoO3-δ ; Solid oxide fuel cell cathode ; Long-term stability ; Degradation ; Chromium poisoning ; Silicon poisoning
• 刊名：Solid State Ionics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：299
• 期：Complete
• 页码：26-31
• 全文大小：1556 K
• 卷排序：299

文摘

Long-term stability test of La0.6Sr0.4CoO3-δ for 3400 h at 800 °C Oxygen exchange kinetics investigated in absence or presence of Cr and Si Post-test analyses of degraded samples by SEM, XPS, and STEM Fast and stable oxygen exchange kinetics in dry atmosphere Degradation in humid atmospheres with Cr/Si sources due to phase decomposition