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Free keywords:
ruthenium; ruthenium dioxide; oxide; CO oxidation; oxygen; chemisorption
Abstract:
CO oxidation over ruthenium dioxide (RuO2) dominates the CO/CO2 conversion rate over the catalytically active oxygen-rich Ru(0001) surfaces. In sharp contrast, chemisorbed O overlayers on Ru(0001) (with and without dissolved oxygen) are virtually inactive with respect to CO oxidation.