HTL Derived Biochar for Supercapacitor Electrodes

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In this study, biochar samples were prepared by conversion of biomass feedstock (corn stover) via catalytic hydrothermal liquefaction (HTL) and later used as electrode material in conjunction with sol-gel derived perovskite based mixed (Mn,Ti)-oxides (Mn:Ti precursors 65:35 wt%) for asymmetric supercapacitors. The HTL reaction was performed with 5wt%. Ca(NO3)2 at 250oC for 1 hour. The biochar obtained after the HTL reaction was activated with KOH and further thermally treated at 400oC for 1 hour. The activated porous biochar samples were analyzed by BET surface area analyzer. In asymmetric supercapacitors (ASC) configuration, the energy storage potential was studied using cyclic voltammetry.

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Journal: TechConnect Briefs
Volume: TechConnect Briefs 2021
Published: October 18, 2021
Pages: 184 - 187
Industry sector: Medical & Biotech
Topics: Biomaterials, Diagnostics & Bioimaging
ISBN: 978-0-578-99550-2