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Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

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Electrochemical Actuators with Multicolor Changes and Multidirectional Actuation.

Yong Ling¹, Hongwei Fan¹, Kun Wang¹

¹State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|March 8, 2022

Summary

This summary is machine-generated.

This study presents a novel electrochemical actuator using V2O5 nanowires/SWCNTs for high actuation and color changes. The back-to-back design addresses limitations in responsive time and actuating direction for multifunctional applications.

Keywords:

dual-responsive devices electrochemical actuators lattice expansion/contraction multicolor changes multidirectional actuation

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Area of Science:

Materials Science
Nanotechnology
Electrochemistry

Background:

Electrochemical (EC) actuators face challenges in responsive time, multifunctionality, and actuating direction.
Developing advanced EC actuators is crucial for expanding their application range.

Purpose of the Study:

To fabricate and investigate a novel back-to-back EC actuator with enhanced performance.
To explore the relationship between the redox behavior of V2O5 nanowires and actuation.
To demonstrate multicolor changes and multidirectional actuation for future multifunctional devices.

Main Methods:

Fabrication of a back-to-back EC actuator using V2O5 nanowires/SWCNTs bilayer networks.
In situ EC X-ray diffraction and Raman spectroscopy for investigating dual-responsive processes.
Construction of V2O5 NWs and W18O49 NWs-based EC actuators.

Main Results:

The fabricated EC actuator exhibited synchronous high actuation amplitude (±9.7 mm, ±28.4°) and multiple color changes.
EC actuation was found to be highly related to the redox behavior of the pseudocapacitive V2O5 NWs layer.
Opposite lattice changes in V2O5 NWs and W18O49 NWs induced multicolor changes and multidirectional actuation.

Conclusions:

The back-to-back EC actuator design successfully enhances actuation amplitude and introduces multifunctionality.
The study provides insights into the pseudocapacitive V2O5 NWs' role in EC actuation.
This work guides the future design of advanced, multifunctional EC actuators.