Synthesis and characterization of coconut-derived graphene nano sheet (GNS) and its properties in Nickel/GNS and Zinc/GNS hybrid electrodes

Document Type

Article

Publication Date

9-1-2024

Abstract

This study introduces a sustainable method of producing a graphene nano sheet (GNS) from coconut shells and investigates its application in GNS, Ni/GNS, and Zn/GNS electrodes for advanced energy storage devices. The GNS was synthesized in a scalable manner using a pyrolysis and impregnation technique, with its successful synthesis verified by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), Raman spectroscopy, and electrical conductivity measurement characterizations. The study highlights the enhanced performance of Zn/GNS electrodes, which outperform both pure GNS and Ni/GNS variants. This superior performance is attributed to the smaller particle size of Zn (mean = 2.356 mu m) compared to Ni (mean = 3.09 mu m) and Zn's more favourable electron configuration for electron transfer. These findings demonstrate the potential of bio-derived GNS composites as efficient, high-performance electrodes, paving the way for more sustainable and cost-effective energy storage solutions.

Keywords

Coconut shell, Graphene synthesis, POyrolysis, Ni/GNS, Zn/GNS, Energy storage electrodes, Bio-derived materials, Sustainable materials

Publication Title

Processes

Divisions

Science

Funders

Riset Kolaborasi Indonesia, Universitas Sumatera Utara Tahun Anggaran 2024 SKEMA-C,Rector of the University of Sumatera Utara [Grant No: 16773/UN5.1; R/PPM/2024],DAPT-LPDP under the scheme "Riset Kolaborasi Indonesia, Universitas Sumatera Utara Tahun Anggaran 2024 SKEMA

Volume

12

Issue

9

Publisher

MDPI

Publisher Location

ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND

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