An XPS Study of the Effect of La2O3Dopant on the Dispersion and Thermal Stability of Pt/Al2O3Catalysts
- 1 June 1984
- journal article
- research article
- Published by Taylor & Francis in Spectroscopy Letters
- Vol. 17 (6-7) , 331-343
- https://doi.org/10.1080/00387018408062691
Abstract
The Pt(4d)/Al(2s) XPS intensity ratio for Pt/Al2O3 catalysts increases with the addition of La2O3 as a dopant. The Pt(311) line in the X-ray diffraction pattern also broadens with the addition of La2O3. These data imply that doping the Pt/Al2O3 catalyst with La2O3 increases the dispersion of the platinum which in turn would be expected to increase the activity and thermal stability of the catalyst.Keywords
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