Journal
MATERIALS LETTERS
Volume 335, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2023.133830
Keywords
Activated carbon; Hydrothermal; Biowaste; Supercapacitor; Electrode
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Green nanotechnology aims to address global sustainability issues by recycling industrial and bio-wastes to produce functional carbonaceous nanomaterials. In this study, activated carbon (AC) was synthesized from walnut shell through a hydrothermal decomposition approach. The synthesized AC exhibited a high specific surface area of 408.8 m2/g and excellent specific capacitance of 204F/g at 1 A/g current density, with good cyclability up to 10,000 cycles.
Green nanotechnology is now emerging to address society's global sustainability issues by recycling numerous industrial and bio-wastes to produce functional carbonaceous nanomaterials like biochar, 2D graphene, graphene oxide, carbon nanotube (CNT), activated carbon (AC), etc. In this study, we have synthesized AC via the hy-drothermal decomposition approach of the walnut shell under high temperature and pressure in a hydrothermal autoclave at temperature ranges from 200 to 250 celcius. The synthesized AC has a high specific surface area of 408.8 m2/g. It has an excellent specific capacitance of 204F/g at 1 A/g of current density with good cyclability up to 10,000 cycles.
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