Publisher DOI: 10.1063/5.0093921
Title: Enhanced electrochemical actuation of nanoporous gold-polypyrrole hybrid under load
Language: English
Authors: Li, Jie 
Markmann, Jürgen 
Mameka, Nadiia 
Issue Date: 11-Jul-2022
Source: Applied Physics Letters 121 (2): 021901 (2022-07-11)
Abstract (english): 
This work examines the actuation strain response of a nanoporous gold-polypyrrole electrochemical actuator under compression. The strain is monitored by in situ dilatometry and dynamic mechanical analysis when the material is wetted by an aqueous electrolyte and subjected to cyclic potential variation under various compressive loads ranging from-0.27 to-22.30 MPa. Contrary to previous studies that report reduced actuation amplitudes under load in the individual constituents of the material-nanoporous gold and polypyrrole, we find the strain amplitudes of the hybrid increase with increasing load and even while being deformed by plastic deformation. In this contribution, we discuss the phenomenon by taking into account the variations of the effective Young's modulus of the material that occur simultaneously with the actuation.
ISSN: 0003-6951
Journal: Applied physics letters 
Institute: Werkstoffphysik und -technologie M-22 
Document Type: Article
Project: SFB 986: Teilprojekt B08 - Mikromechanisch-elektrochemische Kopplung von nanostrukturierten Festkörpern beschichtet mit leitfähigem Polymer 
SFB 986: Teilprojekt B10 - Funktionalisierung von hierarchischen nanoporösen Metallen durch aktive organische Filme 
Appears in Collections:Publications without fulltext

Show full item record

Page view(s)

checked on Jun 3, 2023

Google ScholarTM


Add Files to Item

Note about this record

Cite this record


Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.