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

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/C...

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Detalles Bibliográficos
Autores principales: Wang, Miao, Anoshkin, Ilya V., Nasibulin, Albert G., Ras, Robin H. A., Nonappa, Laine, Janne, Kauppinen, Esko I., Ikkala, Olli
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2016
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5361171/
https://www.ncbi.nlm.nih.gov/pubmed/28496970
http://dx.doi.org/10.1039/c6ra16202a
Descripción
Sumario: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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