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Issue 40, 2014
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Facile fabrication of graphene composite microwires via drying-induced size reduction of hydrogel filaments

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Abstract

Graphene based electrical conductors are under consideration for numerous applications in energy storage, energy conversion devices, electronics and sensors. Here, we report a facile and versatile method for fabrication of graphene based composite microwires ranging from ∼20 to 250 μm in diameter via size reduction during dehydration of extruded larger diameter graphene oxide-loaded agarose hydrogel fibers. The graphene oxide is effectively reduced to graphene by chemical and thermal treatment. After dehydration and reduction, the resulting graphene composite microwires exhibit high electrical conductivities of up to 1.8 S m−1.

Graphical abstract: Facile fabrication of graphene composite microwires via drying-induced size reduction of hydrogel filaments

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Publication details

The article was received on 10 Feb 2014, accepted on 28 Apr 2014 and first published on 28 Apr 2014


Article type: Communication
DOI: 10.1039/C4RA01154F
Citation: RSC Adv., 2014,4, 20927-20931
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    Facile fabrication of graphene composite microwires via drying-induced size reduction of hydrogel filaments

    H. Koo, S. Kim and P. V. Braun, RSC Adv., 2014, 4, 20927
    DOI: 10.1039/C4RA01154F

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