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Advanced Materials

Modifying Native Nanocellulose Aerogels with Carbon Nanotubes for Mechanoresponsive Conductivity and Pressure Sensing

Authors

  • Miao Wang,

    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
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  • Ilya V. Anoshkin,

    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
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  • Albert G. Nasibulin,

    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
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  • Juuso T. Korhonen,

    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
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  • Jani Seitsonen,

    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
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  • Jaakko Pere,

    1. VTT Technical Research Centre of Finland, Biotechnology, FIN-02044 VTT, Finland
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  • Esko I. Kauppinen,

    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
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  • Robin H. A. Ras,

    Corresponding author
    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
    • Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland.
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  • Olli Ikkala

    Corresponding author
    1. Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
    • Department of Applied Physics, Aalto University School of Science (formerly Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland.
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Abstract

Mechanically excellent native cellulose nanofibers that are cleaved from plant cell walls have been modified by functionalized few-walled carbon nanotubes for hybrid nanofiber/nanotube aerogels. They show elastic mechanical behavior in combination with reversible electrical response under compression allowing responsive conductivity and pressure sensing. The concept combines wide availability of nanocellulosics and electrical functionality of carbon nanotubes synergistically.

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