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HYSYDAYS<br>1st World Congress of Young Scientists on Hydrogen Energy Systems

ISBN:
1-56700-230-7 (Print)

H-Y ZEOLITE SUPPORTED PALLADIUM SYSTEMS: THE ROLE IN THE HYDROGEN STORAGE

Serena Bertarione Rava Rossa
Universita degli Studi di Torino NIS (Nanostructured Interfaces and Surfaces)-Centre of Excellence Via P. Giuria 7 10125-Torino, Italy

Domenica Scarano
Universita degli Studi di Torino NIS (Nanostructured Interfaces and Surfaces)-Centre of Excellence Via P. Giuria 7 10125-Torino, Italy

Gabriele Ricchiardi
Dipartimento di Chimica IFM NIS Centre of Excellence, Università di Torino Via P. Giuria 7, Torino, Italy

Adriano Zecchina
Dipartimento di Chimica IFM NIS Centre of Excellence, Università di Torino Via P. Giuria 7, Torino, Italy

Paolo Pollesel
Enitecnologie Via Maritano 26 20097-San Donato Milanese (MI), Italy

Abstract

In this paper it is demonstrated that deuterium (D) atoms formed at the surface of small Pd(0) clusters, located in the supercages of H-Y zeolite, can migrate through the hexagonal windows and penetrate the sodalite cages at room temperature. The effect is particularly evident for highly dispersed systems, whose dispersion is monitored through the IR spectra of adsorbed CO. The spillover of the D atoms, through the framework, is evidenced by the fast OH/OD transformation of the Brønsted sites, located in the supercages and in the sodalite cages.