ISSN:
1572-879X
Keywords:
Hydrogenolysis
;
EXAFS
;
bimetallic
;
XPS
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The activities of 0.5% Pt/H-ZSM-5 and 0.5% Pt/0.75% Cr/H-ZSM-5 catalysts for alkane hydrogenolysis have been compared. The presence of chromium suppresses propane hydrogenolysis by an order of magnitude, but has a much less pronounced effect on ethane hydrogenolysis. Catalyst characterisation by EXAFS and XPS indicates the formation of small alloy particles, typically containing 10 platinum and 3 chromium atoms. The change in catalytic activity is related to electronic structure modification rather than to an ensemble effect.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00764670
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