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CaO impregnated highly porous honeycomb activated carbon from agriculture waste: symmetrical supercapacitor study

Ali, Gomaa A. M. and Habeeb, Omar Abed and Algarni, H. and K. F., Chong (2019) CaO impregnated highly porous honeycomb activated carbon from agriculture waste: symmetrical supercapacitor study. Journal of Materials Science and Chemical Engineering, 54 (1). pp. 683-692. ISSN 2327-6045 (print); 2327-6053 (online)

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Abstract

This study presents the electrochemical studies of activated carbon prepared from palm kernel shell (ACPKS), with CaO impregnation. The CaO is obtained from chicken eggshell waste to produce CaO/ACPKS, which shows highly porous honeycomb structure with homogeneous distribution of CaO nanoparticles (30–50 nm in size). The prepared materials are evaluated as supercapacitor electrodes by testing their electrochemical characteristics. A high specific capacitance value of 222 F g−1 at 0.025 A g−1 is obtained for CaO/ACPKS, which is around three times higher than that for ACPKS (76 F g−1). In addition, electrochemical impedance data show lower impedance for CaO/ACPKS. Lastly, a practical symmetrical supercapacitor is fabricated by CaO/ACPKS and its performance is discussed.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: CaO; honeycomb; agriculture waste; supercapacitor
Subjects: Q Science > QD Chemistry
Faculty/Division: Faculty of Industrial Sciences And Technology
Institute of Postgraduate Studies
Depositing User: Dr. Chong Kwok Feng
Date Deposited: 15 Jan 2019 03:14
Last Modified: 10 Sep 2019 08:51
URI: http://umpir.ump.edu.my/id/eprint/23675
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