High-pressure-induced structural changes, amorphization and molecule penetration in MFI microporous materials: a review

The paper reviews the results of recent studies on the high-pressure behavior of microporous materials with MFI framework type, based on in situ experiments performed with both penetrating and non-penetrating pressure-transmitting media. Different high-pressure-induced phenomena and deformation mechanisms (e.g. pressure-induced over-hydration, pressure-induced amorphization) and the influence of framework and extra-framework composition, and of the presence of silanol defects on the response to high pressure of MDI-type zeolites are discussed.