Peer-reviewed articles 17,970 +



Title: SYNTHESIS OF PARTIALLY OXIDIZED GRAPHITE OXIDE BY OXIDATION OF NANOGRAPHITE

SYNTHESIS OF PARTIALLY OXIDIZED GRAPHITE OXIDE BY OXIDATION OF NANOGRAPHITE
O. Jankovsky;B. Lochman; J.Luxa;M. Lojka;Z. Pavlik
1314-2704
English
20
6.1
The research of 2D carbon-based nanomaterials has become very intensive since the discovery of graphene. Many different preparation procedures of graphene and graphene derivatives have been reported. The aim of this paper was to prepare and characterize partially oxidized graphite oxides, which were prepared from nanographite by adding different amounts of potassium permanganate as an oxidizing agent. The C/O ratio was evaluated from X-ray photoelectron spectroscopy, energy dispersive spectroscopy, and elemental analysis. The amount and type of individual oxygen functionalities were characterized by X-ray photoelectron spectroscopy, Raman spectroscopy and cyclic voltammetry. The structure of partially oxidized graphite oxides was studied by scanning electron microscopy and X-ray diffraction. Results proved that the oxygen content was increasing proportionally to the amount of oxidizing agent. Obtained C/O ratio was between 2 and 16 based on used analytic techniques. The interlayer distances in partially oxidized graphite oxides were also increasing. Oxidation process had no significant impact on the morphology of partially oxidized graphite oxides, the typical layered structure was confirmed for all samples. Obtained results will be useful for the synthesis of partially oxidized graphite oxide with required oxygen content. Such materials will be used for the preparation of electrically conductive composite polymers for wearable electronics or as nanoadmixture for improvement of functional properties of selected construction materials.
conference
20th International Multidisciplinary Scientific GeoConference SGEM 2020
20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
141-148
18 - 24 August, 2020
website
cdrom
7527
graphite oxide; nanographite; partial oxidation; modified Hummers method

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