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XPS Study of a New Heterogeneous Ruthenium Catalyst Precursor

Volume 51, Number 12 (Dec. 1997) Page 1807-1813

Smet, P.; Verpoort, F.; Doncker, G. De; Bossuyt, A.R.; Fiermans, L.; Verdonck, L.


The catalyst precursor has been synthesized by modifying the silica surface with ClPPh2 followed by a surface reaction with RuCl3. Sup- ports consisting of a thin layer of SiO2 on a silicon single crystal have been used. Characterization of the different stages in the reaction procedure has been performed by a combination of conventional and angle-resolved X-ray photoelectron spectroscopy (XPS) using RuCl3/P(C6H5)2/SiO2/Si(100) model precursors. Different types of ruthenium centra have been identified.