Synthesis of graphene from graphite using an electron accelerator
DOI:
https://doi.org/10.35381/i.p.v7i13.4589Keywords:
Graphene, electron accelerator, organic solvents, UV spectroscopy, scanning electron microscopy, (UNESCO Thesaurus).Abstract
The objective was to develop a method of synthesizing graphene in liquid phase using an electron accelerator, which facilitated the disruption of the Van der Waals forces of graphite. Various parameters were evaluated, including solvent type, liquefaction times, stirring speed, and radiation dose. The samples were centrifuged at 1000 rpm for 10 minutes. UV spectroscopy detected characteristic graphene absorption peaks between 264 and 267 nm, corresponding to the π-π* transition. Infrared spectroscopy revealed the presence of functional groups such as hydroxyls, carbonyls and amines, being more diversed in samples treated with DMF and ethanol. Morphological characterization via scanning electron microscopy evidenced transparent films with smooth surfaces and irregular edges, confirming successful graphene synthesis. The results established an efficient and reproducible procedure, suitable for industrial-scale due to its low cost, simplicity and high effectiveness in producing micrometric graphene.
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