Obiettivo The adsorption process of metal ions and/or ligands from solution onto a hydrated oxide surface controls the migration of metal ions and organic substances in the environment and determines the mechanisms of heterogeneous catalytic processes. Their understanding is therefore important for chemistry, chemical engineering, biology and medicine. A central question in this context is the influence of the oxide support on the properties of the adsorbed metal ions. To investigate the interaction of the adsorbed metal ion with the support in a systematic manner, the adsorption of metal ions and the formation of ternary surface complexes on SiO2, Al2O3 and TiO2 as well as the kinetics of these reactions will be studied. Many different methods, UV-Vis spectroscopy, EPR spectroscopy of metal ions and ligands carrying spin labels, NMR spectroscopy, electro- and photoluminescence spectroscopy, ESCA and EXAFS, will be used to obtain information on the distribution of the metal ions and the ligands in the heterogeneous system and the structure of the surface complexes. The magnetic resonance methods give, in addition, an insight into the rate and the mechanisms of the surface complex formation. The results will help to model the mobility of metal ions and organic pollutants in the environment and to improve catalytic processes in a more rational manner. Programma(i) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Argomento(i) 35 - Catalysis and Kinetics Invito a presentare proposte Data not available Meccanismo di finanziamento Data not available Coordinatore Université Pérolles Contributo UE Nessun dato Indirizzo Pérolles 1700 Fribourg Svizzera Mostra sulla mappa Costo totale Nessun dato Partecipanti (5) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto National Academy of Sciences of Ukraine Ucraina Contributo UE Nessun dato Indirizzo 252022 Kiev Mostra sulla mappa Costo totale Nessun dato Research Institute for Physico-Chemical Problems Bielorussia Contributo UE Nessun dato Indirizzo 220080 Minsk Mostra sulla mappa Costo totale Nessun dato Russian Academy of Sciences Russia Contributo UE Nessun dato Indirizzo 117334 Moscow Mostra sulla mappa Costo totale Nessun dato Russian Academy of Sciences - Siberian Branch Russia Contributo UE Nessun dato Indirizzo 630090 Novosibirsk Mostra sulla mappa Costo totale Nessun dato Université Joseph Fourier Grenoble Francia Contributo UE Nessun dato Indirizzo 38041 Grenoble Mostra sulla mappa Costo totale Nessun dato