ISSN:
1572-879X
Keywords:
Sol-gel catalysts
;
platinum-tin catalysts
;
platinum dispersion
;
X-ray diffraction
;
energy dispersive X-ray analysis
;
EDX analysis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Highly dispersed platinum was found in Pt-Sn/Al2O3 catalysts prepared by the sol-gel method, i.e., cogelation of aluminum tri-sec-butoxide and tetrabutyltin and subsequent impregnation with hexachloroplatinic acid. X-ray diffraction studies showed that the cell parameter of pure platinum is not modified in bimetallic Pt-Sn samples. Moreover, energy dispersive X-ray analysis studies (EDX) showed that platinum, but not tin, was detected in the catalysts where tin was incorporated by the sol-gel coprecipitation of tin and aluminum. Incorporation of tin into the alumina network is suggested.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00769483
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