Synthesis of high-purity multilayer graphene using plasma jet

Abstract

A method to synthesize graphene materials using a DC high current divergent plasma torch has been developed. Carbon atoms were generated by the decomposition of propane-butane, methane and acetylene in a thermal plasma jet. The graphene materials were characterized by electron microscopy, thermogravimetry, Raman spectroscopy. The influence of the experimental conditions on the morphology and phase composition of the synthesis products was investigated. The optimal conditions for the synthesis of high-purity graphene flakes have been found.

Fabrication of Graphene Sheets Using an Atmospheric Pressure Thermal Plasma Jet System

“…The higher intensity of the 2D peak indicated a lower number of graphene layers [38]. The 2D peak stronger than the G peak for a monolayer, whilst it was weaker and broader for the bilayer and few-layer graphene [39]. The G peak and the 2D peaks were shifted to higher wavenumbers for the multi-layer graphene [40].…”

The use of nanocluster polyoxometalates in the bioactive substance delivery systems

“…Graphene [214][215][216][217][218][219][220], a single-layer (one atom thick) 2D nanostructure possesses high mechanical (high rigidity) and electric transport (high charge carrier mobility) properties, which have drawn attention to it as a material for semiconductor electronics, creating batteries and fuel cells The use of graphene for biomedicine is studied [216,218], including targeted drug delivery in the form of nanographene oxide (NGO). The discovery and creation of methods for producing carbon nanotubes (CNT) [221] is inextricably linked with the creation of fullerenes, since graphite dispersion in an arc yields not only fullerene molecules, but also one-dimensional CNT structures representing one or several rolled graphite layers .…”