A 2 orders of magnitude gas transport improvement in a medium pore ZSM-5 zeolite has been achieved upon introduction of intracrystalline mesoporosity in gradient-free crystals by desilication post-treatment in alkaline medium.
Direct demonstration of enhanced diffusion in mesoporous ZSM-5 zeolite obtained via controlled desilication
J. Am. Chem. Soc. 2007, 129, 355-360.