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

doi:10.1080/19475411.2014.917739

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 journal › Article › peer-review

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 language	English
Pages (from-to)	114-122
Number of pages	9
Journal	International Journal of Smart and Nano Materials
Volume	5
Issue number	2
DOIs	https://doi.org/10.1080/19475411.2014.917739
Publication status	Published - 2014 Apr 3
Externally published	Yes

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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10.1080/19475411.2014.917739

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

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.",

keywords = "actuator, elastic energy density, elastic modulus, nano-porous activated microwave exfoliated graphite oxide (aMEGO), self-assembly",

author = "M. Ghaffari and Y. Zhou and M. Lin and Koo, {Chong Min} and Zhang, {Q. M.}",

note = "Funding Information: The work was supported by NSF under grant number CMMI-1130437 and by a grant from Korean Institute of Science and Technology.",

year = "2014",

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doi = "10.1080/19475411.2014.917739",

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T1 - High electromechanical reponses of ultra-high-density aligned nano-porous microwave exfoliated graphite oxide/polymer nano-composites ionic actuators

AU - Ghaffari, M.

AU - Zhou, Y.

AU - Lin, M.

AU - Koo, Chong Min

AU - Zhang, Q. M.

N1 - Funding Information: The work was supported by NSF under grant number CMMI-1130437 and by a grant from Korean Institute of Science and Technology.

PY - 2014/4/3

Y1 - 2014/4/3

N2 - 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.

AB - 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.

KW - actuator

KW - elastic energy density

KW - elastic modulus

KW - nano-porous activated microwave exfoliated graphite oxide (aMEGO)

KW - self-assembly

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

Abstract

Keywords

ASJC Scopus subject areas

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