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. and Chen, Cheng-meng (2018). A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning. Carbon, 140 , pp. 148-156.

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.

Publication DOI: https://doi.org/10.1016/j.carbon.2018.08.034
Divisions: Engineering & Applied Sciences > Chemical engineering & applied chemistry
Engineering & Applied Sciences > Polymer and advanced materials research group
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Engineering & Applied Sciences
Additional Information: © 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Full Text Link:
Related URLs: https://linkinghub.elsevier.com/retrieve/pii/S000862231830767X (Publisher URL)
Published Online Date: 2018-12-01
Published Date: 2018-12-01
Authors: 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. ( 0000-0003-4152-6976)
Chen, Cheng-meng

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