Journal
CERAMICS INTERNATIONAL
Volume 48, Issue 19, Pages 29102-29110Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2022.05.048
Keywords
Carbon nanotubes (N-MWCNT); Metal organic framework (MOF); NiCo2S4; Supercapacitor; Cyclic stability; Capacitance retention
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Funding
- National Research Foundation of Korea [NRF-2020R1A2C1006613]
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In this study, nanoporous carbon composites for supercapacitor applications were synthesized using sonication-supported hydrothermal process, showing improved structural, morphological, and electrochemical properties. The specific capacitance of NiCo2S4@N-MWCNT/MOF67 composite was increased by 1.78-fold, demonstrating excellent electrochemical performance and stability.
Sonication-supported hydrothermal process was used to synthesize nanoporous carbon composites of NiCo2S4@N-MWCNT and NiCo2S4@N-MWCNT/MOF67 for supercapacitor applications. The structural, morphological, and electrochemical properties of the synthesized composites were improved the use of the hydrothermal process. The composite electrodes were assembled via three-electrode configuration using 6 M KOH as electrolyte solution. The NiCo2S4@N-MWCNT and NiCo2S4@N-MWCNT/MOF-67 composites showed the specific capacitance of (254 and similar to 455) F/g, respectively, at 1 A/g. Due to the incorporation of the metal organic framework nano porous structured composite, the increment of the specific capacitance was almost 1.78-fold. The electrode shows excellent capacitance retention of 98.43% and improved the cyclic stability in presence of 6 M KOH electrolyte.
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