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Published on: November 30, 2021
An eco-friendly polycaprolactone/graphite composite as a robust freestanding electrode platform for supercapacitive
Rajeev Gupta1, Monika Singhal2
1Department of Applied Chemistry, School of Sciences, ITM(SLS) Baroda University, Vadodara, Gujarat 391510, India. rajeevguptachem@gmail.com.
Researchers developed a novel biodegradable polycaprolactone-graphite composite as a freestanding electrode for supercapacitors. This eco-friendly platform offers excellent stability and conductivity for electrochemical applications.
Area of Science:
- Materials Science
- Electrochemistry
- Polymer Science
Background:
- Traditional supercapacitor electrodes often use non-eco-friendly materials or insulating supports.
- There is a need for sustainable and self-standing conductive platforms for energy storage.
Purpose of the Study:
- To develop and characterize a novel, eco-friendly, freestanding composite electrode for supercapacitor applications.
- To investigate the electrochemical performance and stability of polyaniline deposited on the novel composite platform.
Main Methods:
- Fabrication of a polycaprolactone-graphite (PCLGr) composite as a freestanding electrode.
- Direct deposition of polyaniline (PANI) onto the PCLGr electrode via galvanostatic method.
- Comprehensive characterization including conductivity, XRD, TGA, DSC, SEM, stress-strain analysis, cyclic voltammetry, charge-discharge, and impedance spectroscopy.
Main Results:
- The PCLGr composite serves as a successful self-standing conductive platform, a first for biodegradable polymers.
- Polyaniline deposited on the electrode showed comparable specific capacitance (≈162 F g⁻¹ at 0.5 A g⁻¹) to conventional electrodes.
- The electrode exhibited exceptional stability in highly acidic environments and demonstrated advanced material properties.
Conclusions:
- The developed biodegradable PCLGr composite electrode is a promising eco-friendly alternative for supercapacitor applications.
- The study highlights the potential of sustainable materials in advancing energy storage technologies.
- The freestanding conductive platform offers enhanced stability and performance for electrochemical devices.
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