Definition of "vanadia" [vanadia]

• Vanadium pentoxide (V2O5) (noun)

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• "Argonne scientists showed that the size preselected Pt8-10 clusters stabilized on high-surface-area supports are 40 to 100 times more active for the oxidative dehydrogenation of propane than previously studied platinum and vanadia catalysts, while at the same time maintaining high selectivity towards formation of propylene over by-products."
• "The vanadia based catalysts are highly selective, but their activity is relatively low."
• "Two classes of catalysts are used: vanadia and platinum."