High electromechanical reponses of ultra-high-density aligned nano-porous microwave exfoliated graphite oxide/polymer nano-composites ionic actuators

M. Ghaffari, Y. Zhou, M. Lin, Chong Min Koo, Q. M. Zhang

    Research output: Contribution to journalArticle

    4 Scopus citations

    Abstract

    High elastic energy density and high-efficiency ionic electromechanical actuators were prepared from aligned activated microwave exfoliated graphite oxide (A-aMEGO)/polymer nano-composites, and the electromechanical performance was characterized. The elastic modulus and elastic energy density of the ionic actuators can be tuned over a wide range by varying the polymer (poly (vinylidene fluoride/chlorotrifluoroethylene) [P(VDF-CTFE)]) concentration in the nano-composite actuators. The A-aMEGO/P(VDF-CTFE) nano-composite actuators with 35 wt.% of polymer content exhibit an elastic energy density higher than 5 J/cm3 and an electromechanical conversion efficiency higher than 3.5%, induced under 4 V. The results show the promise of high-density highly aligned graphene electrodes for high-performance ionic electromechanical transduction devices.

    Original languageEnglish (US)
    Pages (from-to)114-122
    Number of pages9
    JournalInternational Journal of Smart and Nano Materials
    Volume5
    Issue number2
    DOIs
    StatePublished - Apr 3 2014

    All Science Journal Classification (ASJC) codes

    • Civil and Structural Engineering
    • Materials Science(all)
    • Mechanics of Materials

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