The Microstructure and Performance of Coal-Based Activated Carbon in Symmetric Supercapacitors as Affected by Activation Temperature and ZnCl2 Concentration

DOI

10.2991/978-94-6463-232-3_16How to use a DOI?

Keywords

Coal; Activation Temperature; ZnCl2 Concentration; Symmetric Supercapacitor; Microstructure; Electrochemical Performance

Abstract

Supercapacitors are gaining much attention as electrochemical energy storage for their fast charging rates, high power density, good cycle performance, quicker charge-discharge, longer device life, and abundant materials. According to the storage mechanism, supercapacitors are divided into 3 types; EDLC (Electric Double Layer Capacitor), pseudocapacitor, and hybrid. Activated carbon is an excellent candidate as the primary material for making EDLC supercapacitors, and coal is one of the best precursor materials. Activated carbon can be synthesized by chemical and physical activation, where KOH and ZnCl₂ are often widely used. However, several researchers have studied the manufacture of activated carbon using ZnCl₂ activators still using a low temperature respectively, under 500℃. However, pore development is influenced by temperature. This research focuses on synthesizing activated carbon from coal using a ZnCl2 activator with different temperature variations at room temperature, 500, 800, and 1100℃. Briefly, the experiment begins with synthesizing coal-activated carbon with temperature variations. Then, the powder obtained was carried out by microstructure measurement, including SEM and XRD. The prime is the primary material for making electrodes and deposited on nickel foam to know its electrochemical performance. Furthermore, the electrodes are arranged with the separator and electrolyte into a coin cell device for electrochemical characteristics to be carried out. The electrochemical measurements include Cyclic Voltammetry (CV), Charge-Discharge (CD), and Electrochemical Impedance Spectroscopy (EIS) using the Gamry potentiostat and Battery Testing Equipment instruments.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Markus Diantoro
AU  - Rizka Ramadhani Maisyarah
AU  - Ishmah Luthfiyah
PY  - 2023
DA  - 2023/08/17
TI  - The Microstructure and Performance of Coal-Based Activated Carbon in Symmetric Supercapacitors as Affected by Activation Temperature and ZnCl2 Concentration
BT  - Proceedings of the 2nd International Conference on Science Education and Sciences 2022 (ICSES 2022)
PB  - Atlantis Press
SP  - 157
EP  - 165
SN  - 2352-541X
UR  - https://doi.org/10.2991/978-94-6463-232-3_16
DO  - 10.2991/978-94-6463-232-3_16
ID  - Diantoro2023
ER  -