ZnSnO3/mesoporous biocarbon composite towards sustainable electrode material for energy storage device

Sim, Cheng-Kim and Abdul Majid, Ahmad Suhaimi and Mahmood, Noor Zalina (2021) ZnSnO3/mesoporous biocarbon composite towards sustainable electrode material for energy storage device. Microchemical Journal, 164. ISSN 0026-265X, DOI https://doi.org/10.1016/j.microc.2021.105968.

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ZnSnO3/mesoporous carbon composite (PP-ZTO) and porous carbon (PP-C) were synthesized via a simple combustion method at 500 degrees C for supercapacitor application. Highly porous composite material of 896.39 m(2) g(-1) was achieved in PP-ZTO. Three well-resolved peaks at 27 degrees, 34 degrees and 52 degrees were observed in the x-ray diffraction (XRD) pattern can be indexed to ZTO. Field emission scanning electron microscope (FESEM) image of PP-ZTO clearly shown the high porous structure along with ZnSnO3 attached on the carbon surface. The composite material exhibited specific capacitance of 94 Fg(-1) at the current density of 0.3 Ag-1. In symmetrical cell, cyclic voltammetry (CV) in PP-ZTO still maintained a nearly rectangular shape as compared to the leaf-shape of PP-C explained the contribution of ZTO in enhancing the electrochemical performance. PP-ZTO also performed excellent capacitance retention of similar to 80% after 3000 charge-discharge cycles with different current densities implying the high durability of the cell. The results indicating that ZTO/carbon as a promising candidate to be applied in supercapacitor.

Item Type: Article
Funders: Ministry of Education, Malaysia (FRGS/1/2018/STG07/UM/02/8), SATU JOINT Research Scheme, JRS (ST033-2019), MyBrain15-MyPhd, Malaysia
Uncontrolled Keywords: ZnSnO3; Supercapacitor; Mesoporous carbon composite; Durability
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Institute of Biological Sciences
Faculty of Science > Department of Physics
Depositing User: Ms Zaharah Ramly
Date Deposited: 02 Jun 2022 07:01
Last Modified: 02 Jun 2022 07:01
URI: http://eprints.um.edu.my/id/eprint/27236

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