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Updated: Dec 31, 2025

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

Multifunctional Graphene-Based Composite Sponge.

Xu Cui¹, Jiayu Tian², Yin Yu²

¹College of Civil Aviation, Shenyang Aerospace University, Shenyang 110136, China.

Sensors (Basel, Switzerland)

|January 16, 2020

Summary

This summary is machine-generated.

Researchers developed a simple, low-cost method to create graphene-based sponge materials. These multifunctional nanocomposites exhibit excellent electrical response for flexible sensors and supercapacitors, demonstrating promising mechanical and capacitive properties.

Keywords:

flexible sensor graphene multifunctional sponge porous materials supercapacitor

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Area of Science:

Materials Science
Nanotechnology
Electrical Engineering

Background:

Graphene is a widely used nano-filler for enhancing porous material conductivity.
Existing methods for preparing graphene-based sponge materials often lack simplicity and cost-effectiveness.
There is a need for materials with improved mechanical, sensing, and capacitive properties.

Purpose of the Study:

To develop a simple and low-cost method for preparing graphene-based sponge porous materials.
To enhance the mechanical properties, sensing capabilities, and capacitive performance of these materials.
To evaluate their potential as multifunctional flexible sensors and supercapacitors.

Main Methods:

Graphene platelets (GnPs) were synthesized using the thermal expansion method.
Graphene-based sponge porous materials were fabricated via a straightforward process.
Flexible sensors and supercapacitors were assembled using the synthesized materials.

Main Results:

The graphene-based composite sponge demonstrated superior electrical response under bending (13.9% resistance change) and torsion (52.5% resistance change).
Optimal filler fraction (1.43 wt.%) yielded enhanced mechanical strength (0.236 MPa tensile strength) and capacitance (21.4 F/g).
The material maintained 94.45% capacitance retention over cycles, indicating good stability.

Conclusions:

The developed graphene-based sponge porous material is a promising multifunctional nanocomposite.
It shows excellent potential for applications in flexible sensors and energy storage devices (supercapacitors).
The simple and cost-effective preparation method makes it highly viable for practical use.