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

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

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)
109 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)89051-89056
Number of pages6
JournalRSC Advances
Volume6
Issue number92
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

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  • Projects

    HYBER: The Academy of Finland's Centre of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials research (2014-2019)

    Cherian, T., Nonappa, N., Ikkala, O., Bertula, K., Poutanen, M., Morits, M., Hynninen, V., Myllymäki, T., Toivonen, M., Sohrabi, F., Haataja, J., Sanchez Sanchez, A. & Rissanen, S.

    01/01/201730/06/2020

    Project: Academy of Finland: Other research funding

    ERC Ikkala (ERC)

    Houbenov, N., Nonappa, N., Cherian, T., Haataja, J., Johansson, L., Bertula, K., Martikainen, L., Morits, M., Myllymäki, T., Ikkala, O., Toivonen, M., Sorvari, J. & Sanchez Sanchez, A.

    01/11/201130/09/2017

    Project: EU: ERC grants

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    Anna Rissanen (Manager)

    Aalto University

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