G.G. Gebreegziabher, A.S. Asemahegne
Graphene has many potential applications. Currently, its synthesis starts with the oxidation of graphite to graphene oxide followed by a separate reduction step. But, this leads to extra cost, prolonged time, and contamination. Here, we report the preparation of reduced graphene oxide (rGO) directly from graphite in a solution of potassium permanganate and concentrated sulfuric acid assisted by ultrasonication. The morphology, optical, chemical, thermal, microstructural, and electrical properties of prepared samples were studied using scanning transmission electron microscopy, selected area electron diffraction, ultraviolet-visible spectroscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis, Raman spectroscopy, X-ray powder diffraction, and cyclic voltammeter, respectively. The analysis confirms that quality of rGO with thickness (~0.36 nm) that can be dispersed in water with the desired properties was obtained. We can use this method to prepare rGO directly from graphite for energy storage.
@article{b22c6ac9-d456-4f67-ab4b-b068ddf577db,
title={One step synthesis and characterization},
author={G.G. Gebreegziabher and A.S. Asemahegne},
year={2026},
language={en}
}TY - JOUR TI - One step synthesis and characterization AU - G.G. Gebreegziabher AU - A.S. Asemahegne PY - 2026 LA - en ER -
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