The effect of oxidation process on graphene oxide fiber properties

Nuray Ucar*, Ilkay Ozsev Yuksek, Mervin Olmez, Elif Can, Ayşen Onen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

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 method and modified Hummers method with pre-oxidation step. It has been observed that pre-oxidation has a significant effect on graphene oxide fiber properties produced by wet spinning process (coagulation). Modified Hummers method without pre-oxidation leads to the highest breaking strength and breaking elongation. Reduced fiber linear density, breaking strength and breaking elongation together with increased crimp were observed in graphene fiber due to the addition of pre-oxidation step.

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalMaterials Science-Poland
Volume37
Issue number1
DOIs
Publication statusPublished - 1 Mar 2019

Bibliographical note

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Funding

This study is supported by TUBITAK (Project Number 114M524).

FundersFunder number
TUBITAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu114M524

    Keywords

    • Coagulation
    • Graphene oxide fiber
    • Hummers method
    • Pre-oxidation
    • Wet spinning

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