title: Extra-large-pore zeolites: bridging the gap between micro and mesoporous structures.
abstract: The conditions required to produce zeolites with low framework density and extra-large pores are discussed. Correlations between framework stability and geometrical and topological descriptors are presented. An attempt has been made to rationalize the synthesis of extra-large-pore zeolites in terms of the synthesis mechanism, the directing effect of the organic structure directing agent (OSDA), the framework atoms, and the gel concentration. Extra-large-pore zeolites, including the recently discovered chiral mesoporous ITQ-37, are described and their catalytic and adsorption properties discussed. Finally, strategies are presented for the preparation of extra-large-pore zeolites with different pore topologies that can fulfill pre-established catalytic and adsorption targets.
authors.affiliation: Instituto de Tecnología Química (UPV-CSIC), Universidad Politécnica de Valencia, Avenida Los Naranjos s/n, 46022 Valencia, Spain.
authors.forename: Jiuxing
authors.initials: J
authors.lastname: Jiang
authors.forename: Jihong
authors.initials: J
authors.lastname: Yu
authors.forename: Avelino
authors.initials: A
authors.lastname: Corma