期刊
MATERIALS LETTERS
卷 301, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.matlet.2021.130335
关键词
Bamboo charcoal; Activated carbon; Supercapacitors
资金
- Department of Space, Government of India through RESPOND project [B.19012/57/2016II]
Researchers prepared activated carbon from bamboo leaves carbonized at high temperature and activated it using KOH solvent. XRD and FT-Raman confirmed the crystal structure and molecule interaction of the activated carbon, showing high specific capacitance and capacity retention in mixed electrolytes.
Activated carbon (AC) material has been prepared from bamboo-leaf carbonized under high temperature at 500 degrees C for 2hr. Then, the chemical reaction method was processed on carbon material to activate using KOH solvent as activating agent. XRD and FT-Raman have confirmed the crystal structure and molecule interaction of the prepared activated carbon. The morphology was characterized using FE-SEM (EDS). The novelty of activated carbon was studied by various aqueous electrolyte such as 1 M Na2SO4, 0.5 M KOH and 1 M Na2SO4 + 0.5 M KOH. The activated carbon delivers the high specific capacitance found as 290F/g at 1A/g using mixed electrolyte (1 M Na2SO4 + 0.5 M KOH). In addition, capacity retention was achieved 93% after 1000 cycles at 10A/g. Mixed electrolytes can be used as a promising electrode material for supercapacitors with high power density.
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