Preparation of Graphene Nanosheets from Graphite Flakes via Shear Assisted Exfoliation

Abstract

 Graphene nanosheets were prepared via a series of mechanical exfoliation methods.  Raman spectra confirm that obtained graphene has the fewest number of layers.  According to the result of XRD, the obtained graphene layer has a thickness of 0.34nm.  The route used is a way of producing lowcost graphene at a high production rate.Graphene is one of the most important forms of carbon. Due to its exceptional physical, chemical, and mechanical properties, it's used in different fields such as electronic, energy storage, and medical applications. Therefore, the production of graphene in large quantities, at a low cost, and high quality, has become critical.Using graphite powder, a few layers of graphene sheets were prepared via a series of mechanical exfoliation methods. the dry ball milling process by the planetary mill was used. Thereafter, the milling was followed by shear force and then supported by ultra-sonication to reach the lowest level of the graphene layers. Morphological properties were examined using a scanning electron microscope (SEM) and a transmission electron microscope (TEM). Also, structural characterizations were investigated using Raman spectra and X-ray diffraction measurements (XRD) and (FTIR). Findings presented in this research highlighted that the synthesis method followed was found to have several advantages, including low cost and the ease of producing a few layers of graphene nanosheets. Subsequently, the promising efficiency of the used methodology is important.

Carbon Fiber Cloth Performance Improvement via Hybrid Materials (Fe2O3, FeCo2O4, and Conducting Polymer) Addition for Energy Storage Applications

“…Recent studies have broadly investigated a range of nanomaterials with particular architectures and developed supercapacitor electrodes. These include carbon-based materials, metal oxides, nitrides, and conductive polymers [9,[13][14][15][16][17][18][19][20]. Furthermore, concerning these materials, carbonaceous matrices stand out, including graphene, carbon nanotubes [21], and porous carbon, because of their exceptional conductivity [22], cost-effectiveness, large surface area [23], great chemical constancy, and eco-friendly, see Figure 1 [24].…”