Creation of Hollow Zeolite Architectures by Controlled Desilication of Al-Zoned ZSM-5 Crystals

Hollow zeolite architectures on different length scales have been obtained upon controlled desilication of Al-zoned ZSM-5 zeolites in alkaline medium. The hollow ZSM-5 crystals possess a functional Al-rich exterior and a tunable internal porosity and accessibility.