caa a22 4500 475843916 CHVBK 20180406123908.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1023/A:1009027621119 doi (NATIONALLICENCE)springer-10.1023/A:1009027621119 Metal-support interactions on rhodium model catalysts [Elektronische Daten] [Stefan Labich, Edmund Taglauer, Helmut Knözinger] Metal-support interactions on supported rhodium catalysts were studied by using specially prepared Rh/TiO2/Mo model systems. For their characterization and the analysis of modifications due to various heat treatments several surface analytical methods were applied: low-energy ion scattering, X-ray photoemission spectroscopy and thermal desorption spectroscopy. Heating in ultrahigh vacuum to 670 K leads to Rh agglomeration followed (above 720 K) by encapsulation including the formation of reduced titanium oxide species. These morphological and chemisorption changes are reversible upon reoxidation and low-temperature reduction and thus exhibit the characteristic features of "strong metal-support interactions”. For the effective mechanism a reaction is suggested that involves oxygen chemisorption on the Rh clusters and partial reduction of the surrounding support oxide. Plenum Publishing Corporation, 2000 catalysis nationallicence rhodium nationallicence titanium oxide nationallicence metal-support interactions nationallicence low-energy ion scattering (LEIS) nationallicence X-ray photoelectron spectroscopy (XPS) nationallicence thermal desorption spectroscopy (TDS) nationallicence Labich Stefan Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748, Garching bei München, Germany aut Taglauer Edmund Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748, Garching bei München, Germany aut Knözinger Helmut Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748, Garching bei München, Germany aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 153-161 1022-5528 14:1-4<153 2000 14 11244 https://doi.org/10.1023/A:1009027621119 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009027621119 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Labich Stefan Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748, Garching bei München, Germany aut NATIONALLICENCE 700 1- Taglauer Edmund Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748, Garching bei München, Germany aut NATIONALLICENCE 700 1- Knözinger Helmut Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748, Garching bei München, Germany aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 153-161 1022-5528 14:1-4<153 2000 14 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer