Fatima Musbah Abbas*, Ahlam Khalofa, Abubaker Elsheikh Abdelrahman and Selma Elsheikh Abdelrahman
Activated Carbon (AC) is a porous material widely utilized in energy storage, electromagnetic wave absorption and, among many other applications. Despite the economic and environmental benefits of recycling date palm leaves (Phoenix dactylifera L.) into AC, there is limited research on the characterization of AC produced via date palm leaves, particularly in pellet form. The study aims to evaluate the structure, mechanical and electrical properties of “Activated Carbon Pellets (ACPs)” derived from “Pre-Carbonized Date Palm Leaves (PCDPLs)” with varying concentrations of LiCl. The ACPs were ball-milled, treated with LiCl and pelletized before undergoing carbonization at 700 °C. The resulting Activated Carbon Pellets (ACPs) were analyzed for particle size distribution, bulk density, Young’s Modulus (YM), crystallite dimension, Specific Surface Area (SSA) and Electrical Conductivity (EC). The percolation theory was applied to analyze YM data. Results indicated that YM increased with LiCl concentration, with the highest value observed at 1.2 M LiCl. The critical density for YM, determined using percolation theory, was 0.7 g/cm3. The ACPs exhibited SSA ranging from 1099.1 to 1545.8 m2/g and the EC varied from 0.531 and 0.642 × 105 (Ohm’m)-1, demonstrating a significant enhancement compared to untreated samples. In conclusion, LiCl activation, combined with controlled heating, significantly improves the physical and electrical properties of ACPs made from date palm leaves, with bulk density being a key factor in these improvements.
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