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 | |
| Publication status | Published - 2014 Apr 3 |
| Externally published | Yes |
Bibliographical 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.
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
- General Materials Science
- Mechanics of Materials