Abstract
Graphene is a single layer of carbon atoms arranged in a two dimension hexagonal lattice. It appeared very quickly that this exceptional material had truly outstanding electronic, mechanical, thermal and optical properties. The main goal of this work is the confinement of graphene nanosheets in an individual polymeric nanofiber and the study of their vibrational and thermal properties in one dimension. After their preparation, graphene sheets were mixed with Polyethylene oxide (PEO) solution to be electrospinned. The synthesized nanofibers were systematically investigated by Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy measurements and their morphology and structure were characterized by atomic force microscopy (AFM), optical microscope and Scanning Electron Microscope (SEM) and finally thermogravimetric analysis (TGA) to check G/PEO mass ratio and interactions to prove the capability of PEO to be a good envelope for the confinement and the alignment of graphene nanosheets in a one dimensional system.
Highlights
Graphene, which has been considered a “rising star” material, has attracted considerable attention from both the experimental and theoretical scientific communities [1]
The main goal of this work is the confinement of graphene nanosheets in an individual polymeric nanofiber and the study of their vibrational and thermal properties in one dimension
Graphene sheets were mixed with Polyethylene oxide (PEO) solution to be electrospinned
Summary
Graphene, which has been considered a “rising star” material, has attracted considerable attention from both the experimental and theoretical scientific communities [1] Because of their novel properties [2,3], such as exceptional thermal, mechanical properties and high electrical conductivity, graphene sheets have been extensively used in synthesizing nanocomposites and fabricating various microelectrical devices like field-effect transistors [4] ultrasensitive sensors [5], transparent conductors [6], electromechanical resonators [7], energy storage and photovoltaic devices [8,9]. In this work we have used Electrospinning, the method of producing fibers with diameters in the range of 10 nm to 10 μm by accelerating a charged polymer jet in an electric field [11,12] This method has attracted much attention due to the ease with which such nanofibers can be produced from either natural or synthetic polymers. Our presented project may open the way for many applications by employing the confinement of graphene sheets in one dimensional nanochannel via a polymeric envelope removable by heat treatment or Ultra-Violet lithography
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