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Digitale Medien

Pt-Sn/Al2O3 sol-gel catalysts: Metallic phase characterization (1993)

Gomez, R. ; Bertin, V. ; Bosch, P. ; [weitere]

Springer

Catalysis letters 21 (1993), S. 309-320

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Details

ISSN: 1572-879X

Schlagwort(e): Sol-gel catalysts ; platinum-tin catalysts ; platinum dispersion ; X-ray diffraction ; energy dispersive X-ray analysis ; EDX analysis

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: 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.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00769483

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