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Benzene hydrogenation has been carried out on a scries of Pt-faujasites covering a whole range of acidic to basic zeolites. The turn over frequency decreases and the apparent activation energy increases as the zeolite basicity increases. This is explained in terms of an electron transfer in basic zeolites from the zeolite to the Pt particles.
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Mallmann et al. (1990) studied this question.
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