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In situ IR measurements for CO adsorption and preferential CO oxidation in H2-rich gases over Ag/SiO2 catalysts are presented in this paper. CO adsorbed on the Ag/SiO2 pretreated with oxygen shows a band centered around 2169 cm−1, which is assigned to CO linearly bonded to Ag+ sites. The amount of adsorbed CO on the silver particles (manifested by an IR band at 2169 cm−1) depends strongly on the...
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