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

doi:10.1039/c6ra16202a

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 journal › Article › Scientific › peer-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 language	English
Pages (from-to)	89051-89056
Number of pages	6
Journal	RSC Advances
Volume	6
Issue number	92
DOIs	https://doi.org/10.1039/c6ra16202a
Publication status	Published - 2016
MoE publication type	A1 Journal article-refereed

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Projects

2 Finished

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.

01/01/2017 → 30/06/2020

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.

01/11/2011 → 30/09/2017

Project: EU: ERC grants

Equipment

Bioeconomy Research Infrastructure

Jukka Seppälä (Manager)

School of Chemical Engineering

Facility/equipment: Facility

OtaNano

Anna Rissanen (Manager)

Aalto University

Facility/equipment: Facility

OtaNano - Nanomicroscopy Center

Janne Ruokolainen (Manager)

Department of Applied Physics

Facility/equipment: Facility

Cite this

Wang, M., Anoshkin, I. V., Nasibulin, A. G., Ras, R. H. A., Nonappa, N., Laine, J., ... Ikkala, O. (2016). Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression. RSC Advances, 6(92), 89051-89056. https://doi.org/10.1039/c6ra16202a

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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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year = "2016",

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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.

In: RSC Advances, Vol. 6, No. 92, 2016, p. 89051-89056.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Electrical behaviour of native cellulose nanofibril/carbon nanotube hybrid aerogels under cyclic compression

AU - Wang, Miao

AU - Anoshkin, Ilya V.

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AU - Laine, Janne

AU - Kauppinen, Esko I.

AU - Ikkala, Olli

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AB - 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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