Chemically exfoliated refined carbon from industrial tea waste for capacitive energy storage
PHYSICA SCRIPTA, vol.99, no.3, 2024 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 99 Issue: 3
- Publication Date: 2024
- Doi Number: 10.1088/1402-4896/ad29dc
- Journal Name: PHYSICA SCRIPTA
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH
- Kocaeli University Affiliated: No
Abstract
Graphitic carbon materials, renowned as favored energy storage materials, offer exceptional features such as a high surface area, customizable surface functionality, stability, and durability and have been extensively investigated. However, identifying highly efficient, cost-effective, sustainable, and environmentally friendly materials and sources is the predominant challenge. Abundant natural biomass, the sole renewable carbon resource, is a promising capacitive graphitic carbon reservoir. This study explores the catalytic carbonization of biomass derived from industrial tea waste, employing FeCl3 as a graphitization agent. Subsequently, the biomass undergoes chemical exfoliation to produce graphene-like compounds. The electrochemical performances are comprehensively examined. This innovative technique aims to modulate the capacitance of the refined carbonaceous material, which has increased from 30 F g-1 to 81 F g-1 through the chemical exfoliation of resistive oxygenated groups, rendering it suitable for a prospective supercapacitor application.