Abstract
To improve lignin function in KMnO4 reduction through one-step hydrothermal carbonization (HTC), the HTC method must be modified to produce MnO2-hydrochar. This study proposed an HTC process with two-step heating to enhance the electrochemical performance of hydrochar. HTC is conducted in two-step heating at 100 °C (4 h) followed by 200 °C (8 h). The highest specific capacitance and kinetic current density of 86.76 F/g and 0.32 mA/cm2 were obtained from the KMnO4-NH4OH solution. These findings show that implementing two-step heating in HTC can modify the mechanism and improve the performance of hydrochar.
Original language | English |
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Pages (from-to) | 195-206 |
Number of pages | 12 |
Journal | Evergreen |
Volume | 11 |
Issue number | 1 |
Publication status | Published - Mar 2024 |
Keywords
- electrocapacitive
- electrocatalytic
- hydrochar
- hydrothermal