期刊
MICROCHEMICAL JOURNAL
卷 164, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.microc.2021.105968
关键词
ZnSnO3; Supercapacitor; Mesoporous carbon composite; Durability
资金
- Ministry of Higher Education Malaysia, MoHE [FRGS/1/2018/STG07/UM/02/8]
- SATU JOINT Research Scheme, JRS [ST033-2019]
- MyBrain15-MyPhd, Malaysia
ZnSnO3/mesoporous carbon composite (PP-ZTO) and porous carbon (PP-C) were synthesized via combustion method, with PP-ZTO showing high porosity, excellent capacitance and cycle stability. The results suggest that ZTO/carbon is a promising candidate for supercapacitor application.
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.
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