Akademik Veri Yönetim Sistemi
JOURNAL OF ENERGY STORAGE, cilt.77, 2024 (SCI-Expanded)
This research paper investigates the use of aqueous electrolytes in multivalent zinc-ion hybrid supercapacitors, highlighting their advantages over traditional supercapacitors in terms of increased energy density, costeffectiveness, and enhanced safety. The study focuses on synthesizing activated carbon materials from hemp biomass through hydrothermal synthesis and KOH chemical activation. The resulting activated carbon possesses a highly porous structure essential for efficient energy storage. Herein, various advanced techniques were employed to examine the structural properties of the activated carbon material, such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET) analysis, Fourier-Transform Infrared (FTIR) spectroscopy, Energy-Dispersive X-ray spectroscopy (EDS), and X-ray Photoelectron Spectroscopy (XPS). On the other flip side, the hemp-derived carbon cathode exhibits a high electrochemical capacity of 220 F/g and an energy density of 65 Wh/kg, highlighting its potential for efficient energy storage. Moreover, the cathode material demonstrates remarkable cycling stability, retaining over 98 % of its capacity after 2000 charge/discharge cycles, indicating a promising long cycle life. Overall, this study emphasizes the potential of aqueous electrolytes and hemp biomass-derived carbon materials in advancing the development of high-performance multivalent zinc-ion hybrid supercapacitors.