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

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2016
Major/Subject
Mcode
Degree programme
Language
en
Pages
6
89051-89056
Series
RSC ADVANCES, Volume 6, issue 92
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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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