초록 |
Activated carbon is fabricated from a variety of carbonaceous source materials. In this study, activated carbon was prepared from microalgae by chemical activation with various KOH/char ratios for high surface area and porosity. The porosity of materials was made up of uniform micropores, most of them having sizes <1 um. The physicochemical properties of activated carbon derived microalgae were characterized by thermogravimetric Analysis, Scanning electron microscope and Boehm titration methods. The electrochemical properties of as-produced activated carbons were determined in three-electrode cell in 6 M KOH aqueous electrolytes using galvanostatic, voltammetry and impedance spectroscopy techniques. |