High‐Performance Randomly Oriented Zeolite Membranes Using Brittle Seeds and Rapid Thermal Processing

Abstract

MFI zeolite membranes with high flux and high separation factors for xylene isomer separation were fabricated by combining several unique processing steps. These include 1) use of brittle seeds prepared by confined synthesis, 2) rubbing and leveling methods to obtain randomly oriented seed layers, 3) secondary hydrothermal growth to produce thin zeolite films, and 4) rapid thermal processing to remove structure-directing agents while minimizing crack formation (see picture; scale bar 500 nm). Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.