A versatile chemistry platform for the fabrication of cost-effective hierarchical cation and anion exchange membranes

This work presents a versatile chemistry platform for the fabrication of hierarchical cation and anion exchange membranes (hCEMs hAEMs) with tuneable transport properties. A strong focus was put onto developing cost-effective fabricated through sustainable easily scalable process, performance at least as good industry standard materials. Hierarchical ion were by coating UV crosslinking an acrylic ionomer on top PVC-SiO 2 porous substrate. Membrane samples different density tested application in electrodialysis-desalination. The properties hCEMs found to be strongly dependant density: hCEM crosslinked showed selectivity 88% (electrical resistance 6.15 Ω.cm ), while one most 97% 11.02 ). similar trend observed hAEMs which increase from 94% (increase electrical 5.22 6.44 best performing hIEMs allowed reach ED current efficiency high 93.3% final desalination 56% (commercial reference: 94.5%, 59%). • low-cost alternative conventional is proposed. membrane developed. solvent free process. electrodialysis model application. line industry-standard