APPLICATION OF MULTIPLE-SCATTERING IN PLATINUM-BASED HETEROGENEOUS CATALYSTS

Up to now, Exafs analysis of heterogeneous catalysts has been made usi ng the free electron single scattering model. Coordination numbers and interatomic distances were extracted according to the classical Exafs formula which relates modulations of the absorption coefficient and s tructural parameters. In this work, we try to consider multiple scatte ring in the analytical procedure in order to obtain a mom precise stru ctural description of the material at the first step of the preparatio n i.e. the impregnation-drying.