A tubular commercially available alumina support was coated using the dip coating technique. The objective is to prepare silica and Pt impregnated membranes. Scanning electron microscopy (SEM), energy diffraction X-ray analysis (EDXA), nitrogen adsorption desorption at 77 K and gas permeation measurements were employed for membrane characterization. The permeation of H-2, He and N-2 revealed that the membranes are crack free. H-2/N-2 selectivity for the silica membrane obtained the highest value of 2.93 at 0.9 barg and 25 degrees C. On the other hand, H-2/He selectivity of 1.96 at 1.6 barg and 300 degrees C for the Pt membrane was obtained and found to be higher than the theoretical Knudsen selectivity. While the silica membrane realised on the thin film coating to enhance the selectivity to hydrogen, the Pt impregnated membrane on the other hand enhance hydrogen transport through an activated surface diffusion in addition to Knudsen flow. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.