Abstract
A simple method for the preparation of carbon supported metals is described. The method involves liquid phase metal impregnation of untreated and ammoniated sphagnum peat followed by pýrolysis in the 500–800 C range and/or further activation. The characterization of the dispersion has been studied for the case of Pt-impregnated cokes. Moderate pyrolysis temperatures (540 C) result in a high degree of dispersion (Pt crystallite size less than 10 Å) as determined via H 2 chemisorption. The detailed preparation procedure as well as the effect of the pyrolysis temperature on the properties of the impregnated carbons are described.
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