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A highly efficient electrode material based on waste plastic derived rGO decorated with polypyrrole and zinc oxide nanoparticles for supercapacitor applications
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DOI：10.1039/D5TA07562A.png)
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Abstract
En 中文
The rising concern over non-biodegradable plastic; along with the global energy issue; necessitates new and sustainable solutions. One viable method is to convert plastic trash into value-added materials for electrochemical applications. In this study; we describe a two-step catalytic pyrolysis approach for producing reduced graphene oxide (rGO) from waste plastics. Additionally; we illustrate the fabrication of waste plastic derived rGO-based ternary composite with ZnO and PPy; WP-rGO/ZnO/PPy (RPZ); which improves its electrochemical performance by providing a variety of active sites. The ternary RPZ composite’s properties were evaluated by XRD; Raman; FT-IR; SEM; and XPS whereas the electrochemical efficiency was examined by CV; GCD; and EIS. The ternary RPZ composite electrodes exhibits a remarkable specific capacitance value of 676.4 F g-1 at 0.5 A g-1 and a strong capacitance retention of 90.6% over 5000 cycles. Moreover; the assembled symmetric energy storage device achieved an energy density of 27.23 Wh kg-1 at high-power density of 499.97 W kg-1. Notably; an LED light can be powered for up to 10 minutes by two symmetric devices that use a ternary RPZ composite as a very effective electrode material in a series configuration. This study contributes to the development of environmentally friendly energy storage systems by highlighting the potential of repurposing waste materials for advanced energy applications.
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