Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression

Wang, Miao; Anoshkin, Ilya V.; Nasibulin, Albert G.; Ras, Robin H A; Nonappa, Nonappa; Laine, Janne; Kauppinen, Esko I.; Ikkala, Olli

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Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression

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Title:	Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression
Author(s):	Wang, Miao ; Anoshkin, Ilya V. ; Nasibulin, Albert G. ; Ras, Robin H A ; Nonappa, Nonappa ; Laine, Janne ; Kauppinen, Esko I. ; Ikkala, Olli
Date:	2016
Language:	en
Pages:	6 89051-89056
Department:	Department of Applied Physics Department of Forest Products Technology Department of Radio Science and Engineering Department of Bioproducts and Biosystems
Series:	RSC ADVANCES, Volume 6, issue 92
ISSN:	2046-2069
DOI-number:	10.1039/c6ra16202a
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Citation: Wang , M , Anoshkin , I V , Nasibulin , A G , Ras , R H A , Nonappa , N , Laine , J , Kauppinen , E I & Ikkala , O 2016 , ' Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression ' , RSC Advances , vol. 6 , no. 92 , pp. 89051-89056 . https://doi.org/10.1039/c6ra16202a
Abstract: Hybrid aerogels consisting of cellulose nanofibers (CNF) and modified few-walled carbon nanotubes (FWCNT) are investigated under cyclic mechanical compression to explore "electrical fatigue". For this purpose the FWCNTs were hydrophilized, thus promoting their aqueous dispersibility to allow FWCNT/CNF hybrid hydrogels, followed by freeze-drying to obtain hybrid aerogels. The optimized composition consisting of FWCNT/CNF 20/80 wt/wt showed conductivity of 10-5 S cm-1 as promoted due to double percolation, and showed only small changes in electrical and mechanical behaviour upon cycling 100 times. The electrical behaviour under cycled compression shows good stability and reversibility.

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