Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 1447 - 1454 (1985)
Update date:2022-08-11
Topics:
Karpinski, Zbigniew
Juszczyk, Wojciech
Stachurski, Jaroslaw
The reactions of neopentane and n-butane in the presence of an excess of dihydrogen have been studied on films of Pd-Cu and Pd-Ag evaporated onto mica.The characterization of films showed that they were predominantly (111) oriented.The catalytic activity for isomerization of neopentane and n-butane was higher for ca. 10 atpercent Cu than for pure Pd, resembling the catalytic behaviour of Pd-Au(111) films.This does not, however, confirm the existence of the ligand effect in alkane isomerization over Pd-IB metal alloys.The catalytic activity of Pd-Ag(111) alloys decreases with increasing silver content, but on the basis of the inferred surface composition of these alloys this agrees with the conclusion drawn for the Pd-Cu system, i.e. the possible absence of the ligand effect.
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