2019
DOI: 10.2478/msp-2019-0015
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The effect of oxidation process on graphene oxide fiber properties

Abstract: Graphene, a carbon allotrope, became a significant area of research with its superior electrical, mechanical, optical properties, etc. There are several methods to obtain graphene oxide from graphite, one of which is the Hummers method. In this study, several modifications and pre-treatments preceding the Hummers method have been employed. Three different graphene oxide fibers have been produced by three different procedures, i.e. fibers obtained by Hummers method with pre-oxidation step, modified Hummers meth… Show more

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Cited by 7 publications
(7 citation statements)
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“…1. The functionalized graphene exists in innate sheet-like morphology, 34 while aggregation is observed in the SEM micrographs of amino acid-functionalized GO. The aggregation among sheets is due to the interaction developed between different polar groups that are connected to functionalized graphene sheets.…”
Section: Resultsmentioning
confidence: 99%
“…1. The functionalized graphene exists in innate sheet-like morphology, 34 while aggregation is observed in the SEM micrographs of amino acid-functionalized GO. The aggregation among sheets is due to the interaction developed between different polar groups that are connected to functionalized graphene sheets.…”
Section: Resultsmentioning
confidence: 99%
“…Apesar de o grafeno já ser objeto de estudos teóricos há muitos anos (o termo grafeno foi adotado em 1962, a partir da junção da palavra grafita com o sufixo eno, devido à dupla ligação entre carbonos existente na estrutura química) [131] , somente foi obtido e caracterizado em 2004 pelos pesquisadores A. Geim e K. Novoselov, ao submeter amostras da grafita a sucessivas etapas de esfoliação mecânica (peeling), por meio de uma fita adesiva [132] . Este feito lhes rendeu, em 2010, o prêmio Nobel de Física.…”
Section: Grafenounclassified
“…Do ponto de vista químico, o grafeno pode ser definido como uma rede bidimensional planar de átomos de carbono com hibridização sp 2 , em ligações covalentes arranjadas em uma estrutura cristalina hexagonal com espessura em escala atômica (aproximadamente 1,0 angstrom) [24] , conforme representado na Figura 26. Em outras palavras, grafeno é uma estrutura bidimensional composta de carbonos ligados de maneira hexagonal por hibridização sp 2 , com espessura de um átomo [32,131,132] .…”
Section: Grafenounclassified
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