Structure of Extremely Nanosized and Confined In-O Species in Ordered Porous Materials

Abstract

Perturbed-angular correlation, x-ray absorption, and small-angle x-ray scattering spectroscopies were suitably combined to elucidate the local structure of highly diluted and dispersed [Formula presented] species confined in the porous of the ZSM5 zeolite. This novel approach allow us to determined the structure of extremely nanosized In-O species exchanged inside the 10-atom-ring channel of the zeolite, and to quantify the amount of [Formula presented] crystallites deposited onto the external zeolite surface. © 2003 The American Physical Society.