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 Citations (Scopus)

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

Keywords

  • actuator
  • elastic energy density
  • elastic modulus
  • nano-porous activated microwave exfoliated graphite oxide (aMEGO)
  • self-assembly

ASJC Scopus subject areas

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

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