Highly active bimetallic catalysts, Pt–Co nanoparticles supported on yttriastabilized zirconia (YSZ; see picture) can be prepared in a single step by co-impregnation. This system shows a high catalytic activity for the selective oxidation of CO in the presence of excess hydrogen, especially at temperatures below 423 K.
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Ko et al. (2006) studied this question.
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