Development of hydrogen selective microporous PVDF membrane |
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| Affiliation: | 1. Centre for Nano and Material Science, Jain University, Jain Global Campus, Bangalore 562112, Karnataka, India;2. Department of Physics, Savitribai Phule Pune University, Ganeshkhind, Pune 411016, Maharashtra, India;1. Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore;2. School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore |
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| Abstract: | Hydrogen is a sustainable clean and green energy source used to eliminate the problem of greenhouse effect. In the present work, the feasibility of gas permeability in separation of H2 from CO2 and N2 have been examined using polyvinylidene fluoride (PVDF) membranes synthesised in our laboratory by the phase inversion process. Effect of various non-solvent additives, such as lithium chloride (LiCl) and Tetraethoxysilane (TEOS) in the PVDF dope solution, have been studied. The resulted asymmetric flat sheet microporous hydrophobic membrane, shows higher hydrogen permeability and selectivity over other gases (CO2 & N2). It has been observed that the MT5 membrane has shown the highest selectivity for hydrogen in comparison to CO2 and N2. The highest value of selectivity was obtained as 4.8 and 3.7 in case of H2/CO2 and H2/N2 respectively. The permeability of membrane has been obtained in the range of 2.3–4.2 mega barrer. SEM analysis is used for the investigation of membrane surface morphology. |
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| Keywords: | Polyvinylidene fluoride Lithium chloride Tetraethoxy silane Phase inversion Hydrophobic Hydrogen separation |
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