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Ceria plays an active catalytic role in removing carbon from the catalyst by a support-mediated cleaning mechanism. Increasing the support surface area using a novel preparation method led to improved catalyst stability and a lower coking rate. DRIFTS of adsorbed ethanol shows that oxygen from the support facilitates the formation of acetate intermediate species, thus demonstrating the ability of...
The mechanisms of Co/ceria catalyst deactivation during steam reforming, oxidative steam reforming, and partial oxidation of ethanol were explored by comparing the results from different characterization techniques with those obtained from catalytic testing in a fixed-bed reactor. The nature of carbon deposition and the reaction conditions played critical roles in determining the extent of a catalyst...
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