Study of Hydrogen Adsorption on GO/PS Based Flexible Nanocomposites at Room Temperature
Graphene Oxide (GO)/Polystyrene (PS) nanocomposites of thisckness (50 μm) have been synthesized by solution blending method with DMF as solvent. The composites have been coagulated by drop wise addition of DMF into a large volume of methanol. These composites filled almost
completely with graphene oxide (GO) as a filler concentration (0.01–0.5 wt %) by volume. Hydrogen adsorption study on these composites has been performed by sievert’s type apparatus at room temperature. The storage capacity upto 5.02 wt% has been obtained by repetition of various
cycles at constant pressure. Dynamic Mechanical Analysis (DMA) has been performed for testing of mechanical strength of these fabricated composites. Storage modulus has been found to be increased at low concentration of graphene oxide in polystyrene matrix. Scanning Electron Microscopy (SEM)
has been used for surface morphology of fabricated composites, from SEM micrographs layered structure of graphene oxide has been obtained. The Dielectric constant (up to 5.4) has been found at higher graphene oxide concentration in polystyrene matrix due to interfacial effect and accumulation
of charges. From Differential Scanning Calorimetry (DSC) the glass transition temperature (90 °C) at higher concentration of graphene oxide in PS matrix has been obtained.
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Document Type: Research Article
Department of Physics, S. S. Jain Subodh PG College, Jaipur 302004, India
Department of Chemistry, SGN Khalsa PG College, Sriganganagar 335001, India
Department of Physics, Indian Institute of Technology, Jodhpur 342011, India
Department of Physics, University of Puerto Rico, Rio Piedras, San Juan, PR-00936, USA
Publication date: November 1, 2016
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