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2014 | OriginalPaper | Buchkapitel

21. Molecular Mechanism of Electrically Induced Volume Change of Porous Electrodes

verfasst von : Kenji Kiyohara, Takushi Sugino, Kinji Asaka

Erschienen in: Soft Actuators

Verlag: Springer Japan

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Abstract

Electroactive soft actuators that make use of the volume change of porous electrodes on applying voltage are recently drawing attention. We discuss the mechanism of the volume change of the porous electrodes on applying voltage by using the Monte Carlo simulation. We show that, when the pore size of the electrode is so small that it is comparable to the size of the electrolyte ions, slight change in the molecular structure or in the external field can drastically change the thermodynamic properties in porous electrodes. The pressure exerted inside the porous electrodes can be two or three orders of magnitude larger than the atmospheric pressure. Those behaviors are explained by the balance between the volume exclusion interaction and the electrostatic interaction.

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Metadaten
Titel
Molecular Mechanism of Electrically Induced Volume Change of Porous Electrodes
verfasst von
Kenji Kiyohara
Takushi Sugino
Kinji Asaka
Copyright-Jahr
2014
Verlag
Springer Japan
DOI
https://doi.org/10.1007/978-4-431-54767-9_21

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