Activated carbon synthesized from bamboo shoots for supercapacitor application

Authors

  • Tanachai Ponken Renewable Energy and Nano-materials Research (RENR), Program of Physics, Faculty of Science and Technology, Rajabhat Maha Sarakham University, Maha Sarakham, 44000 Thailand
  • Phatcharin Phumuen Program of Physics, Faculty of Science and Technology, Rajabhat Maha Sarakham University, Maha Sarakham, 44000 Thailand
  • Narongsak Phosopa Program of Physics, Faculty of Science and Technology, Rajabhat Maha Sarakham University, Maha Sarakham, 44000 Thailand
  • Patin Tagsin Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002 Thailand
  • Wichaid Ponhan Program of Physics, Faculty of Science and Technology, Rajabhat Maha Sarakham University, Maha Sarakham, 44000 Thailand
  • Authit Phakkhawan Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002 Thailand
  • Pawinee Klangtakai Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002 Thailand

DOI:

https://doi.org/10.55674/cs.v15i1.247051

Keywords:

activated carbon, bamboo shoots, supercapacitor, KOH activation, carbon electrode

Abstract

Carbon powder was synthesized from bamboo shoots by chemical activation. The porous carbon powders were activated by potassium hydroxide (KOH) with a ratio of carbon powder (C) and KOH (C : KOH) of 1 : 1, 1 : 2, 1 : 3, and 1 : 4 by weight, respectively. Structure, morphological properties, and the porosity of activated carbon powders were investigated by XRD, EDX, SEM, and BET.
The electrochemical performances were measured by charge/discharge (CD) and cyclic voltammetry (CV) techniques. Specific surface areas increased to 1,017, 1,162, 1,257, and 1,012 m2 g−1 for C : KOH ratios of 1 : 1, 1 : 2, 1 : 3, and 1 : 4, respectively. Specific capacitances were 11.30, 26.60, 50.50, and 40.50 F g–1 for the C : KOH ratios of 1 : 1, 1 : 2, 1 : 3, and 1 : 4, respectively. The activated carbon electrode with a C: KOH ratio of 1 : 3 sintered at 600 °C displayed the highest specific capacitance value of 50.5 F g–1. It should be a good candidate material for high-performance supercapacitor electrodes.

HIGHLIGHTS

  • The synthesis carbon powder from natural material is bamboo with the activated chemical construction method by the stimulation with KOH into the carbon powder in C : KOH ratio was 1 : 1, 1 : 2, 1 : 3 and 1 : 4.
  • When increasing the ratio of carbon to KOH will have a lot porous sizes spread on the surface of carbon.

GRAPHICAL ABSTRACT

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Published

2022-08-24

How to Cite

Ponken, T., Phumuen, P., Phosopa, N. ., Tagsin, P., Ponhan, W., Phakkhawan, A., & Klangtakai, P. (2022). Activated carbon synthesized from bamboo shoots for supercapacitor application. Creative Science, 15(1), 247051. https://doi.org/10.55674/cs.v15i1.247051

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