Thermogravimetric Analysis (TGA) of Graphene Materials: Effect of Particle Size of Graphene, Graphene Oxide and Graphite on Thermal Parameters

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dc.contributor.authorFarivar, F.
dc.contributor.authorLay Yap, P.
dc.contributor.authorKarunagaran, R.U.
dc.contributor.authorLosic, D.
dc.date.issued2021
dc.description.abstractThermogravimetric analysis (TGA) has been recognized as a simple and reliable analytical tool for characterization of industrially manufactured graphene powders. Thermal properties of graphene are dependent on many parameters such as particle size, number of layers, defects and presence of oxygen groups to improve the reliability of this method for quality control of graphene materials, therefore it is important to explore the influence of these parameters. This paper presents a comprehensive TGA study to determine the influence of different particle size of the three key materials including graphene, graphene oxide and graphite on their thermal parameters such as carbon decomposition range and its temperature of maximum mass change rate (Tmax). Results showed that Tmax values derived from the TGA-DTG carbon combustion peaks of these materials increasing from GO (558–616 °C), to graphene (659–713 °C) and followed by graphite (841–949 °C) The Tmax values derived from their respective DTG carbon combustion peaks increased as their particle size increased (28.6–120.2 µm for GO, 7.6–73.4 for graphene and 24.2–148.8 µm for graphite). The linear relationship between the Tmax values and the particle size of graphene and their key impurities (graphite and GO) confirmed in this study endows the use of TGA technique with more confidence to evaluate bulk graphene-related materials (GRMs) at low-cost, rapid, reliable and simple diagnostic tool for improved quality control of industrially manufactured GRMs including detection of “fake” graphene.
dc.description.statementofresponsibilityFarzaneh Farivar, Pei Lay Yap, Ramesh Udayashankar Karunagaran, and Dusan Losic
dc.identifier.citationC, 2021; 7(2):1-12
dc.identifier.doi10.3390/c7020041
dc.identifier.issn2311-5629
dc.identifier.orcidFarivar, F. [0000-0002-4829-1682]
dc.identifier.orcidKarunagaran, R.U. [0000-0001-7939-4775]
dc.identifier.orcidLosic, D. [0000-0002-1930-072X]
dc.identifier.urihttps://hdl.handle.net/2440/140040
dc.language.isoen
dc.publisherMDPI AG
dc.relation.granthttp://purl.org/au-research/grants/arc/IH150100003
dc.rights© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
dc.source.urihttps://doi.org/10.3390/c7020041
dc.subjectgraphene; graphene oxide; graphite; thermogravimetric analysis
dc.titleThermogravimetric Analysis (TGA) of Graphene Materials: Effect of Particle Size of Graphene, Graphene Oxide and Graphite on Thermal Parameters
dc.typeJournal article
pubs.publication-statusPublished

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