ISSN:
1572-879X
Keywords:
XPS of Pt black catalyst
;
UPS of Pt black catalyst
;
surface state of Pt black
;
catalytic properties of Pt black
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract XPS and UPS of a Pt black catalyst after customary H2-O2 regeneration shows considerable amounts of residual C as well as surface OH/H2O species. Surface C could not be removed even by O2 at 800 K. Oxygenates are stable even after H2 treatment up to 750 K. Their chemical state has been tentatively identified by comparing XPS and UPS results. Catalytic transformations of n-hexane on Pt black treated analogously is reported and the effect of surface species on catalytic properties discussed. Possible consequences of the presence of stable surface OH/H2O species on H2-O2 titrations are mentioned.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00765062
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