Open AccessEffect of Activation Methods on the Supercapacitor Performance of Hydrochar Derived from Oil Palm Empty Fruit Bunch
Author(s) -
Tulakarn Ketwong,
Rueyan Doong,
Chinnathan Areeprasert
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/812/1/012006
Subject(s) - supercapacitor , potassium hydroxide , activated carbon , carbonization , electrolyte , capacitance , materials science , horizontal scan rate , carbon fibers , chemical engineering , electrode , palm oil , chemistry , composite material , electrochemistry , adsorption , organic chemistry , scanning electron microscope , food science , cyclic voltammetry , composite number , engineering
In this study, the activated carbon (AC) derived from oil-palm empty fruit bunches (EFB) for using in effective supercapacitor application was carried out by two main steps namely hydrothermal carbonization and activation with three different activated agents steam, carbon dioxide and potassium hydroxide for increase of the AC’s specific area. The fabricated AC had surface area of 246.9 – 809.7 m 2 /g which were extremely higher as compared to the non-activated carbon i.e., 1.1 m 2 /g. It is concluded that the chemically AC afforded the best material and showed the high specific capacitance of 101.1 F/g at the scan rate of 5 mV/s with 1 M Na 2 SO 4 as neutral electrolyte over the three-electrode cell. The study revealed that EFB could be considered as a promising potential electrode for supercapacitor.