ISSN:
1572-879X
Keywords:
Platinum
;
sulfated zirconia catalysts
;
XAFS
;
catalyst characterization
;
Pt
;
EXAFS
;
XANES
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract EXAFS and XANES data show that platinum, present in a Pt-SO4-ZrO2 catalyst, exists in the metallic state following calcination in air at 725°C for 2 h, and that no detectable change in the valence state of Pt occurs during use of the catalyst for hydrocarbon conversion at 150°C under hydrogen pressure. The metallic Pt is present in reasonably large crystals where the average coordination number of Pt is about 12.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00811811
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