ItemArticle

Fabrication of cobalt oxide@cellulose/nitrogen doped carbon nanotubes decorated metal organic frameworks composite for symmetric supercapacitor applications

Title
Fabrication of cobalt oxide@cellulose/nitrogen doped carbon nanotubes decorated metal organic frameworks composite for symmetric supercapacitor applications
Creator
Ramesh S.; Rabani I.; Indumathi T.; Yadav H.M.; Selvaraj M.; Pai Sunajadevi K.R.; Seo Y.-S.; Kim J.-H.; Kim H.S.
Description
The two main issues facing the world's population now are energy storage needs and environmental protection. A lot of work has gone into creating electrochemical energy storage using chemical processes and a variety of possible electrode active materials. Supercapacitors, which are energy storage devices with a unique structure and morphology of cellulose materials for green energy resource. In this regard, solid state hydrothermal process is used to fabricate Co3O4@Cellulose (CE), Co3O4@CE/N-MWCNT, and Co3O4@CE/N-MWCNT/ZIF-67 composite materials. XRD, XPS, BET, and HR-TEM analyses verified the structural, surface, and morphological analysis. The electrochemical studies by a three- and two-electrode fabrication in presence of 1M KOH electrolyte for supercapacitor applications. When 1M KOH electrolyte is present, the fabricated Co3O4@CE/N-MWCNT/ZIF-67composite electrode displayed exceptional cyclic stability and a specific capacitance of ?835 F g?1 at 1 A/g. The constructed composite electrodes of Co3O4, Co3O4@CE, and Co3O4@CE/N-MWCNT have specific capacitances of 263, 406, and 576 F g?1 at 1 A/g, respectively, which improves electrochemical properties using a three-electrode design. The Co3O4@CE-N-MWCNT/ZIF-67//1MKOH/SSC composite is produced using two electrode configurations. The final material showed a capacitance of 258 F g?1 at 1 A/g, a capacitance retention of 84.95 % across 8000 cycles, and an energy density of 30.99 W h kg?1 at a power density of 5409 W kg?1. Hence, the composite electrodes that have been produced have the potential to be used in electrochemical systems. 2025 Elsevier B.V.
Source
Journal of Power Sources, Vol-631
Date
2025-01-01
Publisher
Elsevier B.V.
Subject
Cellulose (CE); Cobalt oxides; Composite; Hydrothermal process; Nitrogen doped MWCNT; Symmetric supercapacitor (SSC); Zeolite imidazole frame work (ZIF-67)
Coverage
Ramesh S., Department of Mechanical, Robotics and Energy Engineering, Dongguk University, 30, Pil-dong, Jung-gu, Seoul, 04620, South Korea; Rabani I., Interface Lab, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, 05006, South Korea; Indumathi T., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India; Yadav H.M., School of Nanoscience and Bio-Technology, Shivaji University, Kolhapur, 416004, India; Selvaraj M., Department of Chemistry, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia, Research Center for Advanced Materials Science (RCAMS), King Khalid University, PO.Box 9004, Abha, 61413, Saudi Arabia; Pai Sunajadevi K.R., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India; Seo Y.-S., Interface Lab, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, 05006, South Korea; Kim J.-H., Department of Mechanical Engineering, Inha University, Inha-ro,100, Namgu, Incheon, 22212, South Korea; Kim H.S., Department of Mechanical, Robotics and Energy Engineering, Dongguk University, 30, Pil-dong, Jung-gu, Seoul, 04620, South Korea
Rights
Restricted Access
Relation
ISSN: 3787753; CODEN: JPSOD
Format
Online
Language
English
Type
Article

Collection

Articles

Citation

Ramesh S.; Rabani I.; Indumathi T.; Yadav H.M.; Selvaraj M.; Pai Sunajadevi K.R.; Seo Y.-S.; Kim J.-H.; Kim H.S., “Fabrication of cobalt oxide@cellulose/nitrogen doped carbon nanotubes decorated metal organic frameworks composite for symmetric supercapacitor applications,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/12522.

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