One-pot hydrothermal synthesis of MWCNTs/NiS/graphitic carbon nitride as next generation asymmetric supercapacitors
- Title
- One-pot hydrothermal synthesis of MWCNTs/NiS/graphitic carbon nitride as next generation asymmetric supercapacitors
- Creator
- Baby A.; Vigneshwaran J.; Jose S.P.; P.B S.
- Description
- Fabricating new electrode materials with high capacitive properties is crucial in contemporary research. The construction of hybrid supercapacitors developed using transition metal-sulfides and carbonaceous materials provides significant surface area and distinctive charge storage characteristics. In the present work, NH2-multiwalled carbon nanotubes/NiS/g-C3N4 (MNG) hybrid was synthesized by a one-pot hydrothermal method, and pristine g-C3N4 using thermal method. The morphological studies of the hybrid materials show the presence of tube like MWCNTs, sphere-like NiS, and sheet like g-C3N4. The uniform distribution of all the components in the hybrid helps in exhibiting excellent electrochemical performances. The prepared electrode material shows a specific capacitance of 2432 F g?1 at a current density of 4 A g?1. Furthermore, following a series of 10,000 cycling tests, the hybrid ternary composite retains 98 % of its initial capacitance. An asymmetric coin cell of MNG//AC was fabricated with an exceptional energy density of 73.3 Wh kg?1 and a power density of 1599.2 W kg?1. This remarkable rate performance and cycle stability exhibited by the material indicate its potential as a highly efficient electrode material for supercapacitors. 2024 Elsevier B.V.
- Source
- Journal of Alloys and Compounds, Vol-992
- Date
- 2024-01-01
- Publisher
- Elsevier Ltd
- Subject
- Cycling stability; Graphitic carbon nitride; Nickel sulfide; Supercapacitors; Sustainable energy
- Coverage
- Baby A., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Vigneshwaran J., Nano Laboratory, School of Physics, Madurai Kamaraj University, Madurai, 625021, India; Jose S.P., Nano Laboratory, School of Physics, Madurai Kamaraj University, Madurai, 625021, India; P.B S., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India
- Rights
- Restricted Access
- Relation
- ISSN: 9258388; CODEN: JALCE
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Baby A.; Vigneshwaran J.; Jose S.P.; P.B S., “One-pot hydrothermal synthesis of MWCNTs/NiS/graphitic carbon nitride as next generation asymmetric supercapacitors,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 26, 2025, https://archives.christuniversity.in/items/show/13007.