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

J.M. RAMALLO-LÓPEZ; M. RENTERÍA; E.E. MIRÓ; F.G. REQUEJO; A. TRAVERSE

PHYSICAL REVIEW LETTERS

American Physical Society

Lugar: Ridge, NY (USA); Año: 2003 vol. 91 p. 108304 - 108307

0031-9007

Perturbed-angular correlation, x-ray absorption, and small-angle x-ray scattering spectroscopieswere suitably combined to elucidate the local structure of highly diluted and dispersed InOx speciesconfined 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 In2O3 crystallites deposited onto the external zeolite surface.