Abstract

Mixed manganese oxide/platinum catalysts in the form of monoliths have been prepared by the deposition-precipitation method. The influence of the platinum content and the calcination temperature has been investigated by activity measurements for total oxidation of methane, naphthalene and carbon monoxide in the presence of steam and carbon dioxide, and by the temperature programmed reduction (TPR) technique. Manganese oxide behavior is influenced by the presence of even very small amounts of platinum especially when the catalyst is calcined at a higher temperature due to favorable synergetic effects.

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