A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning

Kashif Javed, Andres Krumme, Mihkel Viirsalu, Illia Krasnou, Tiia Plamus, Viktoria Vassiljeva, Elvira Tarasova, Natalja Savest, Arvo Mere, Valdek Mikli, Mati Danilson, Tiit Kaljuvee, Sven Lange, Qingchun Yuan, Paul D. Topham, Cheng-meng Chen

Research output: Contribution to journalArticle

Abstract

Owing to its high conductivity, graphene has been incorporated into polymeric nanofibers to create advanced materials for flexible electronics, sensors and tissue engineering. Typically, these graphene-based nanofibers are prepared by electrospinning synthetic polymers, whereas electrospun graphene-biopolymer nanofibers have been rarely reported due to poor compatibility of graphene with biopolymers. Herein, we report a new method for the preparation of graphene-biopolymer nanofibers using the judicious combination of an ionic liquid and electrospinning. Cellulose acetate (CA) has been used as the biopolymer, graphene oxide (GO) nanoparticles as the source of graphene and 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) as the ionic liquid (IL) to create CA-[BMIM]Cl-GO nanofibers by electrospinning for the first time. Moreover, we developed a new route to convert CA-[BMIM]Cl-GO nanofibers to reduced GO nanofibers using hydrazine vapor under ambient conditions to enhance the conductivity of the hybrid nanofibers. The graphene sheets were shown to be uniformly incorporated in the hybrid nanofibers and only 0.43 wt% of GO increase the conductivity of CA-[BMIM]Cl nanofibers by more than four orders of magnitude (from 2.71× 10−7 S/cm to 5.30 × 10−3 S/cm). This ultra-high enhancement opens up a new route for conductive enhancement of biopolymer nanofibers to be used in smart (bio) electronic devices.
Original languageEnglish
Pages (from-to)148-156
JournalCarbon
Volume140
Early online date22 Aug 2018
DOIs
Publication statusPublished - 1 Dec 2018

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Ionic Liquids
Biopolymers
Graphite
Electrospinning
Ionic liquids
Nanofibers
Graphene
Oxides
Cellulose
hydrazine
Flexible electronics
Hydrazine
Tissue engineering
Polymers

Bibliographical note

© 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Cite this

Javed, Kashif ; Krumme, Andres ; Viirsalu, Mihkel ; Krasnou, Illia ; Plamus, Tiia ; Vassiljeva, Viktoria ; Tarasova, Elvira ; Savest, Natalja ; Mere, Arvo ; Mikli, Valdek ; Danilson, Mati ; Kaljuvee, Tiit ; Lange, Sven ; Yuan, Qingchun ; Topham, Paul D. ; Chen, Cheng-meng. / A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning. In: Carbon. 2018 ; Vol. 140. pp. 148-156.
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Javed, K, Krumme, A, Viirsalu, M, Krasnou, I, Plamus, T, Vassiljeva, V, Tarasova, E, Savest, N, Mere, A, Mikli, V, Danilson, M, Kaljuvee, T, Lange, S, Yuan, Q, Topham, PD & Chen, C 2018, 'A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning', Carbon, vol. 140, pp. 148-156. https://doi.org/10.1016/j.carbon.2018.08.034

A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning. / Javed, Kashif; Krumme, Andres; Viirsalu, Mihkel; Krasnou, Illia; Plamus, Tiia; Vassiljeva, Viktoria; Tarasova, Elvira; Savest, Natalja; Mere, Arvo; Mikli, Valdek; Danilson, Mati; Kaljuvee, Tiit; Lange, Sven; Yuan, Qingchun; Topham, Paul D.; Chen, Cheng-meng.

In: Carbon, Vol. 140, 01.12.2018, p. 148-156.

Research output: Contribution to journalArticle

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T1 - A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning

AU - Javed, Kashif

AU - Krumme, Andres

AU - Viirsalu, Mihkel

AU - Krasnou, Illia

AU - Plamus, Tiia

AU - Vassiljeva, Viktoria

AU - Tarasova, Elvira

AU - Savest, Natalja

AU - Mere, Arvo

AU - Mikli, Valdek

AU - Danilson, Mati

AU - Kaljuvee, Tiit

AU - Lange, Sven

AU - Yuan, Qingchun

AU - Topham, Paul D.

AU - Chen, Cheng-meng

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PY - 2018/12/1

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N2 - Owing to its high conductivity, graphene has been incorporated into polymeric nanofibers to create advanced materials for flexible electronics, sensors and tissue engineering. Typically, these graphene-based nanofibers are prepared by electrospinning synthetic polymers, whereas electrospun graphene-biopolymer nanofibers have been rarely reported due to poor compatibility of graphene with biopolymers. Herein, we report a new method for the preparation of graphene-biopolymer nanofibers using the judicious combination of an ionic liquid and electrospinning. Cellulose acetate (CA) has been used as the biopolymer, graphene oxide (GO) nanoparticles as the source of graphene and 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) as the ionic liquid (IL) to create CA-[BMIM]Cl-GO nanofibers by electrospinning for the first time. Moreover, we developed a new route to convert CA-[BMIM]Cl-GO nanofibers to reduced GO nanofibers using hydrazine vapor under ambient conditions to enhance the conductivity of the hybrid nanofibers. The graphene sheets were shown to be uniformly incorporated in the hybrid nanofibers and only 0.43 wt% of GO increase the conductivity of CA-[BMIM]Cl nanofibers by more than four orders of magnitude (from 2.71× 10−7 S/cm to 5.30 × 10−3 S/cm). This ultra-high enhancement opens up a new route for conductive enhancement of biopolymer nanofibers to be used in smart (bio) electronic devices.

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