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The use of 2,2-dimethylbutane (neohexane) as a probe molecule of metal catalysts
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| 其它 |
R. Burch a 1, Z. Paál b Date: 7 July 1994 Pages: 9-33 Volume: Volume 114, Issue 1 Abstract Probe molecules can be used to complement surface characterisation techniques for elucidating the nature of possible active sites in supported metal catalysts. 2,2-dimethylbutane (neohexane) is eminently suitable for this purpose because it combines an isobutyl and an ethyl group, representing two archetypes for hydrocarbon reactions on metal catalysts. In this review a survey is given of hydrogen-deuterium exchange, hydrogenolysis, and isomerization of 2,2-dimethylbutane mainly on Group 8–10 metals, copper, and rhenium, as well as on their various alloys. Hydrogen-deuterium exchange results are presented, and interpretations in terms of factors such as different surface morphologies are considered. For 2,2-dimethylbutane, hydrogenolysis is the main reaction on most catalysts. Isomerization is restricted to platinum, palladium, and to some extent to iridium and nickel. |
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(2025-6-4)