INFLUENCE OF SI AL RATIO ON AUGER LINE-INTENSITIES OF ZEOLITES/

The dependence of the O K L(2,3) L(2,3) and Na K L(2,3) L(2,3) Auger l ine intensities and the binding energy E(b) of the O Is photoelectron line of zeolites A, X, Y and mordenite on the structure induced charge transfer effects is demonstrated. Intensity of the O K L(2,3) L(2,3) Auger line and the E(b) of the O Is line are increased by shortening t he T-O bond. Chemical shifts of the O Is line are thus influenced pred ominantly by rehybridization of valence orbitals of the zeolites. Furt her experiments are need to explain the influence of structure-induced charge transfer effects on Auger line intensities and core level bind ing energies of ion-exchanged sodium in zeolites.