Dry reforming of methane over fluorite-like mixed oxides promoted by Pt
2009
Dry reforming of methane into syngas was studied over complex Pt-promoted fluorite-like oxides (PrCeZrO, GdCeZrO and LaCeZrO) supported on a corundum substrate. Activity and syngas selectivity of these catalysts were found to depend strongly on their composition, pretreatment and reaction conditions. At low temperatures and short contact times, the H2/CO ratio in the syngas is below 1 due to a fast reverse water–gas shift reaction. The catalyst performance was found to correlate with the bulk oxygen mobility in complex fluorite-like oxides, which prevents the surface coking.
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