title: Capturing ultrasmall EMT zeolite from template-free systems.
abstract: Small differences between the lattice energies of different zeolites suggest that kinetic factors are of major importance in controlling zeolite nucleation. Thus, it is critical to control the nucleation kinetics in order to obtain a desired microporous material. Here, we demonstrate how careful investigation of the very early stages of zeolite crystallization in colloidal systems can provide access to important nanoscale zeolite phases while avoiding the use of expensive organic templates. We report the effective synthesis of ultrasmall (6- to 15-nanometer) crystals of the large-pore zeolite EMT from template-free colloidal precursors at low temperature (30°C) and very high yield.
authors.affiliation: Laboratoire Catalyse and Spectrochimie, ENSICAEN, Université de Caen, CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen, France.
authors.forename: Eng-Poh
authors.initials: EP
authors.lastname: Ng
authors.forename: Daniel
authors.initials: D
authors.lastname: Chateigner
authors.forename: Thomas
authors.initials: T
authors.lastname: Bein
authors.forename: Valentin
authors.initials: V
authors.lastname: Valtchev
authors.forename: Svetlana
authors.initials: S
authors.lastname: Mintova