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A new Cr incorporation mechanism involving preferential formation of nanometre size Fe–Co–Cr–O spinel particles was found to be responsible for a reduced Cr poisoning effect at 900 °C under cathodic polarization for the La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3−δ solid oxide fuel cell cathode.
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Ni et al. (2019) studied this question.
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