Activity of a Te-MgO Catalyst Prepared by Adsorption of Te Vapor onto MgO: Dehydrogenation Activity for Aromatic Hydrocarbons
نویسندگان
چکیده
The activity of a Te-MgO catalyst prepared by adsorbing Te vapor onto MgO powder was determined by dehydrogenation of indane, 9,10-dihydrophenanthrene, cumene, and p-cymene. The activity of the Te-MgO catalyst was higher than that of the MgO catalyst in most of the cases investigated. The selectivity of the former catalyst was much higher than that of the later in all cases studied. The Te-MgO catalyst was not superbasic, and its surface basicity differed little from that of the MgO catalyst, indicating that surface basicity was not relevant to the activity observed. The one-electron donating ability of the Te-MgO catalyst was stronger than that of the MgO catalyst. On the basis of this result, it was postulated that the one-electron donor centers created by interaction of Te with MgO were responsible for the catalytic activity of the Te-MgO catalyst.
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