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

RSC Advances
Miao WangOlli Ikkala

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.

References

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Citations

Mar 6, 2018·Advanced Materials·Eero KontturiOlli Ikkala
Mar 9, 2018·Macromolecular Rapid Communications·Zhenchao QianJian Xu
Aug 23, 2019·IET Nanobiotechnology·Jiajia LiZhaoyang Xu
Sep 14, 2018·ACS Applied Materials & Interfaces·Yangyang XinGilles Lubineau

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Methods Mentioned

BETA
scanning electron microscopy
transmission electron microscopy

Software Mentioned

KickStart
Gatan

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