There have been significant advancements in small-pore zeolite membranes in recent
years. With pore size closely related to many energy-or environment-related gas molecules …

Characterization of zeolite membrane defects including SEM, dye permeation, bubble point
and permporometry methods are presented. Experimental setup, governing equations and …

All-silica DDR zeolite membrane has great potential for CO 2-CH 4 separation because of its
suitable pore size, great stability and insensitivity to moisture. However, the long synthesis …

Carbon dioxide (CO 2) is the main contributor to global warming; therefore, research efforts
aim at its capture. Membranes, in particular, zeolite membranes offer a promising approach …

Compared with other small pore zeolite membranes, all-silica DDR membrane has unique
advantages like smaller pore size and outstanding stability, which makes it perfect for the …

High performance SAPO-34 zeolite membranes were prepared by a novel two-step method,
hydrothermal synthesis+ dry gel conversion method. A short hydrothermal synthesis was …

The separation performances of all-silica DDR membranes are inferior to other small pore
zeolite membranes, which is the result of poor understanding of the corresponding zeolite …

All-silica zeolite DDR was prepared by microwave-aided hydrothermal synthesis and
characterized by X-ray diffraction, scanning electron microscopy, infra-red spectroscopy …

The size and morphology control of zeolite crystals is important which might have significant
impact on their adsorption, separation and catalytic properties. Traditional hydrothermal …

First, we attempted to synthesize a DD3R zeolite membrane by using precursor solutions
containing small amounts of a structure-directing agent and potassium fluoride (KF), with the …