Dieses Dokument steht unter einer CreativeCommons Lizenz by-nc-nd/4.0
Verlagslink DOI: 10.1016/j.eml.2018.03.002
Titel: Functionalisation of metal-polymer-nanocomposites : chemoelectromechanical coupling and charge carrier transport
Sprache: English
Autor/Autorin: Wilmers, Jana 
Bargmann, Swantje 
Schlagwörter: multiphysics;actuators;interface effects;nanocomposites;charge carrier transport;electromechanical coupling
Erscheinungsdatum: 27-Mär-2018
Verlag: Elsevier
Quellenangabe: Extreme Mechanics Letters (21) : 57-64 (2018)
Zeitschrift oder Schriftenreihe: Extreme mechanics letters 
Zusammenfassung (englisch): Electrochemical actuation in nanoporous metals is achieved by impregnation of the material’s pore space with a ionic conductor, typically an aqueous electrolyte. These hybrid actuators exhibit fully reversible deformation and mechanical properties that can be controlled by electric signals. Recently, set-ups have been proposed in which the nanoporous metal’s surface is additionally coated with a conjugated polymer, resulting in a nanocomposite that exhibits strongly increased actuation strains compared to the pure metal while still retaining the mechanical strength of the metal backbone. In order to exploit the full potential of these nanocomposite actuators, a detailed understanding of the underlying ion transport mechanisms and means to predict the actuator’s response are necessary. We present an interface-extended continuum mechanical model to study actuation in pure nanoporous gold and nanoporous gold–polypyrrole nanocomposites. Simulations predict significantly enhanced actuation strains due to the presence of the polymer phase and show that both, the nanocomposite’s structure and the ions’ mobilities, greatly affect the actuator’s response.
URI: http://tubdok.tub.tuhh.de/handle/11420/1731
DOI: 10.15480/882.1728
ISSN: 2352-4316
Dokumenttyp: (wissenschaftlicher) Artikel
Sponsor / Fördernde Einrichtung: German Research Foundation (DFG)
Projekt: SFB 986 ‘‘M3’’, project B6 
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