ABSTRACT
The dynamic properties of adsorbed molecules play a central role in reactions and separations that take place within the cavities of zeolites and other shape-selective, microporous catalysts. Selectivity may be strongly influenced, e.g., by the diffusivities of reactant and product molecules. However, with this selectivity comes a price: significant transport resistance. Zeolite scientists are thus interested in better understanding diffusion in zeolites to optimize the balance between high flux and high selectivity. These interests have resulted in a burgeoning field of both experimental and theoretical research, which we review in this chapter.
