Progress in zeolitic membranes

This contribution on progress in zeolitic membranes focuses, in contrast to the many papers highlighting membrane performance, on the synthesis/preparation of zeolite phases/membranes, as here one can speak of making genuine progress in terms of the fundamental understanding of the science that controls observables such as performance or stability. In particular, successful modifications of proven zeolite syntheses and new general strategies for the formation of microporous membranes and membrane configurations are discussed, covering the period of the last two years.