High‐Performance Proton Exchange Membrane with Vertically Aligned Montmorillonite Nanochannels

). This study outlines a pathway for developing next-generation proton exchange membranes that are both cost-effective and highly stable. Additionally, it introduces a straightforward method to create fully vertically aligned transmembrane nanochannels while preserving the interlayer structure, which is crucial for advancements in nanofluidics.