Two-step Heating Effect of Hydrochar-MnO2 Formation and Their Electrochemical Performances

Sekar Tri Wulan Amelia; Tantular Nurtono; Heru Setyawan; W. Widiyastuti

Two-step Heating Effect of Hydrochar-MnO₂ Formation and Their Electrochemical Performances

Sekar Tri Wulan Amelia
, Tantular Nurtono
, Heru Setyawan
, W. Widiyastuti^*

^*Corresponding author for this work

Institut Teknologi Sepuluh Nopember

Research output: Contribution to journal › Article › peer-review

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
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

Cite this

@article{96b7f42dfa3948e4bd872aa260ebaf24,

title = "Two-step Heating Effect of Hydrochar-MnO2 Formation and Their Electrochemical Performances",

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.",

keywords = "electrocapacitive, electrocatalytic, hydrochar, hydrothermal",

author = "Amelia, \{Sekar Tri Wulan\} and Tantular Nurtono and Heru Setyawan and W. Widiyastuti",

year = "2024",

month = mar,

language = "English",

volume = "11",

pages = "195--206",

journal = "Evergreen",

issn = "2189-0420",

publisher = "Interdisciplinary Graduate School of Engineering Sciences (IGSES), Kyushu University",

number = "1",

}

TY - JOUR

T1 - Two-step Heating Effect of Hydrochar-MnO2 Formation and Their Electrochemical Performances

AU - Amelia, Sekar Tri Wulan

AU - Nurtono, Tantular

AU - Setyawan, Heru

AU - Widiyastuti, W.

PY - 2024/3

Y1 - 2024/3

N2 - 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.

AB - 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.

KW - electrocapacitive

KW - electrocatalytic

KW - hydrochar

KW - hydrothermal

UR - https://www.scopus.com/pages/publications/85189100623

M3 - Article

AN - SCOPUS:85189100623

SN - 2189-0420

VL - 11

SP - 195

EP - 206

JO - Evergreen

JF - Evergreen

IS - 1

ER -

Two-step Heating Effect of Hydrochar-MnO₂ Formation and Their Electrochemical Performances

Abstract

Keywords

Other files and links

Fingerprint

Cite this