In this study, magnesium-aluminum (Mg-Al) based LDHs with different
Mg2+/Al3+ ratios were prepared by co-precipitation
method and modified with perfluorooctane-sulfonic acid tetraethylammonium
salt (PFOSA). X-Ray Diffraction (XRD), Atomic Force Microscopy (AFM),
Fourier Transfer Infrared spectroscopy (FTIR) and Thermogravimetric Analysis
(TGA) were carried out to obtain the structural and thermal characteristics
of resulting materials. The organo-modified LDHs have been used in the
formulation of Nafion® nanocomposites. Nanocomposite membranes were prepared
by casting of LDH/PFOSA nanoparticles dispersed in Nafion® solution. Then,
modified LDH/Nafion composite membranes were evaluated for water retention
capability at ambient and elevated temperature.