A LEIS study of the surface structure of a molybdenum on γ-alumina catalyst

G.C. van Leerdam, J.-P. Jacobs, H.H. Brongersma

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The surfaces of a series of MoO3/γ-Al2O3 catalysts have been studied with low-energy ion scattering. Due to several modifications of the equipment it is possible to determine absolute rather than normalized LEIS-signals. Using this facility, it is found that various frequently given interpretations in LEIS literature on catalysts appear to be incorrect. For the present MoO3/γ-Al2O3 catalyst it is shown that the support material, which is generally assumed to be inert, has a thermal treatment dependent surface structure. This leads to a completely different model for the surface structure of the catalyst as a function of loading.

Original languageEnglish
Pages (from-to)45-56
Number of pages12
JournalSurface Science
Issue number1-3
Publication statusPublished - 1992

Bibliographical note

Funding Information:
The investigationwse re supportedin part by the NetherlandsF' oundationo f Chemical Research( SON)withf inanciala id from the Netherlands'O rganizatiofno r the Advancemenotf Scientific Research(N WO).


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