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The results of the DTGA analysis of the un-used and used catalysts from the present study are shown in Figs. 4 and 5, respectively. There were two peaks that showed a weight increase during the DTGA of the un-used catalysts (Fig. 4). The peaks appearing at low temperature (<350 ¡ãC) are attributed to the oxidization of well dispersed Mo2C, while those emerging at higher temperature are attributed to the oxidation of a Mo2C ¡°bulk-phase¡± species.

[ Last edited by ankang276 on 2011-8-11 at 06:54 ]

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