Title of article :
Investigation of bi-ionic contribution for the enhancement of bending actuation in polypyrrole film
Author/Authors :
Takashima، نويسنده , , Wataru and Pandey، نويسنده , , Shyam S and Kaneto، نويسنده , , Keiichi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
5
From page :
48
To page :
52
Abstract :
Electrochemomechanical deformation (ECMD) in the electrodeposited polypyrrole (PPy) films was examined by judicious selection of the supporting electrolytes during electropolymerization and cyclic voltammetry (CV). A critical perusal of the ECMD characteristics corroborates the cation-driven and/or anion-driven deformation in the PPy films. It was found that a freestanding PPy film successively electrodeposited as a cation-driven layer followed by an anion-driven layer works as a bimorph actuator. The large bending motions were observed in 1 M NaCl solution in which both anion-driven and cation-driven layers are electroactive. In contrast, the bending motions were found to be suppressed in both 1 M ethylbenzene sulfonic acid sodium salt and 1 M tetrabutylammonium chloride, in which only one of the cation-driven or the anion-driven layer is electroactive. The results indicate that the bimorph actuator driven by the synchronized insertion and deinsertion of anion and cation, which can be expressed as the bi-ionic actuator, clearly enhances its bending motion compared to that observed in the conventional bimorph actuators driven by mono-ionic ECMD behaviors.
Keywords :
Electrochemomechanical deformation , Polypyrrole , conducting polymer , Anion-driven actuation , Cation-driven actuation , Bimorph actuator , Bi-ionic actuator
Journal title :
Sensors and Actuators B: Chemical
Serial Year :
2003
Journal title :
Sensors and Actuators B: Chemical
Record number :
1417145
Link To Document :
بازگشت