Sensitive compressible electrochemical-driven asymmetric supercapacitor-type sensor based on cross-linked honeycomb naofoam and resilient graphene aerogel framework

•A novel electrochemical-driven asymmetric supercapacitor-type sensor is designed.•Cross-linking CoV2O6/rGO exhibits a high specific capacitance of 1687.7 F g−1.•This sensor is integrated with electrochemical-storing and sensing function.•This sensor expands practical application areas of energy sto...

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Bibliographic Details
Published in:Journal of alloys and compounds 2021-07, Vol.869, p.159379, Article 159379
Main Authors: Wei, Ning, Zhu, Chunqin, Lu, Shibin, Liu, Changyong, Li, Yan, Wang, Leini
Format: Article
Language:English
Subjects:
Aerogels
Asymmetry
Compressibility
Crosslinking
Current response
Electrochemical-driven
Electronic devices
Flexible components
Graphene
Graphene aerogel
Nanowires
Portable equipment
Sensors
Storage
Strain
Supercapacitor
Supercapacitors
Tactile sensor
Tactile sensors (robotics)
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Summary:•A novel electrochemical-driven asymmetric supercapacitor-type sensor is designed.•Cross-linking CoV2O6/rGO exhibits a high specific capacitance of 1687.7 F g−1.•This sensor is integrated with electrochemical-storing and sensing function.•This sensor expands practical application areas of energy storage device. [Display omitted] With the rapid development of intelligent portable electronics, the multifunction requirements for electronic devices get higher and higher. Here, we introduce a novel electrochemical-driven asymmetric supercapacitor-type tactile sensor using cross-linked honeycomb CoV2O6/rGO nanofoam as positive electrode and 1D Ag nanowires integrated with resilient graphene aerogel framework as negative electrode. The novel sensor is integrated with electrochemical-storing and sensing functions, simultaneously. The positive honeycomb CoV2O6/rGO naofoam reveals a high specific capacitance of 1687.7 F g−1 at 1 A g−1, meanwhile negative porous graphene aerogel framework demonstrates high reversible compressibility under strain from 10% to 90%. This electrochemical-driven sensor can realize self-driven and behaves rapid sensitive responses current in the case of detecting strain. The elastic electrochemical-driven sensor not only realizes multi-functionalization of supercapacitor storage devices, but also offers a promising candidate for flexible sensor devices.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2021.159379