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Synthesis and characterization of green porous carbons with large surface area by two step chemical activation with KOH

Nasri, Noor Shawal and Jibril, Mohammed and Ahmad Zaini, Muhammad Abbas and Mohsin, Rahmat and Dadum, Hamza Usman and Musa, Ahmed Murtala (2014) Synthesis and characterization of green porous carbons with large surface area by two step chemical activation with KOH. Jurnal Teknologi (Sciences and Engineering), 67 (4). pp. 25-28. ISSN 2180-3722

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Official URL: https://doi.org/10.11113/jt.v67.2787

Abstract

Porous carbons were synthesized from coconut shell using chemical activation by potassium hydroxide (KOH). N2 adsorption isotherm analysis for BET surface area and pore volume of the synthesized porous carbon were carried out. The Langmuir surface area, BET surface area and pore volume are 1646 m2/g, 1353 m2/g and 0.6 cm3/g, respectively. From the FTIR analysis, hydroxyls, alkenes, carbonyls and aromatics functional groups were identified. The proximate and ultimate analysis shows high percentage of carbon and less ash content which indicates a good precursor material for porous carbon. The carbonization temperature and time were also varied to observe their effect on the yield of char, with carbonization at 700°C for 2 h having highest yield of 32%.

Item Type:Article
Uncontrolled Keywords:potassium hydroxide, synthesis
Subjects:T Technology > TN Mining engineering. Metallurgy
Divisions:Petroleum and Renewable Energy Engineering
ID Code:62769
Deposited By: Fazli Masari
Deposited On:14 Jun 2017 08:30
Last Modified:14 Jun 2017 08:30

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