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Long-term degradation of La0.6Sr0.4Co0.2Fe0.8O3-δ IT-SOFC cathodes due to silicon poisoning
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ASR of LSCF on GDC measured during 2400 h at 700 °C

Strong increase in ASR due to Si-poisoning

TEM reveals phase decomposition on the nano-scale

La-Sr-silicate layer and (Co,Fe)m>xm>Om>ym> nanoparticles are formed

Si-poisoning identified as critical SOFC cathode degradation mode

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