Corncob-Derived Activated Carbon as Electrode Material for High-Performance Supercapacitor.

ABSTRACT: In this study, corncob was explored as a low-cost and abundant precursor for the preparation of activated carbon via carbonization and the KOH activation method. The alkaline/biochar ratios varied from 3:1 to 5:1, and the activation temperatures ranged from 700 to 900 °C. The characterized results reveal that the alkaline/biochar ratios and activation temperatures had a remarkable influence on the morphology and microstructure of as-prepared activated carbon (CAC_T-R). The CAC_T-R presented a porous structure with a large number of micropores and a small number of mesopores. The reasonable distribution of micropores and mesopores endows the ideal structure for ion transfer and charge storage. The optimal sample CAC_700-4 exhibited the best capacitive performan

SUBMITTER: Dong L 

PROVIDER: S-EPMC11396467 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature