N-rGO/NiCo2O4 nanocomposite for high performance supercapacitor applications

Title

N-rGO/NiCo2O4 nanocomposite for high performance supercapacitor applications

Creator

Vignesh G.; Devendran P.; Nallamuthu N.; Sudhahar S.; Kumar M.K.

Description

Spinel structured transition metals oxide GO/NiCo2O4 nanocomposites and nitrogen doped N-rGO/NiCo2O4 nanocomposites were developed. Powder X-ray diffraction investigations confirmed the structure. The bonding vibrations of the produced nanocomposites were confirmed using infrared and Raman spectroscopy. EDX analysis was used to determine the composition and element weights of the nanocomposites. The electrochemical properties of the nanomaterials were measured using 1M KOH electrolyte. At 5mVs?1 scan rates, cyclic voltammetry revealed a specific capacitance (Csp) of 1078.2 Fg?1 for N-rGO/NiCo2O4. The bare and nanocomposites of NiCo2O4, GO/NiCo2O4, and N-rGO/NiCo2O4 specific capacitance, charge-discharge capability, and cyclic stability were investigated. Energy density and power density of the N-rGO/NiCo2O4 nanocomposite were estimated to be 20.4 Wh kg?1 and 1300W kg?1, respectively. N-rGO//N-rGO/NiCo2O4 asymmetric supercapacitor device with Ed of 14.9 Wh kg?1 and Pd of 3500W kg?1 was fabricated. 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Source

Journal of Materials Science: Materials in Electronics, Vol-34, No. 9

Date

2023-01-01

Publisher

Springer

Coverage

Vignesh G., Energy Physics Laboratory, Department of Physics, Kalasalingam Academy of Research and Education (Deemed to be University), Krishnankoil, 626 126, India; Devendran P., Energy Physics Laboratory, Department of Physics, Kalasalingam Academy of Research and Education (Deemed to be University), Krishnankoil, 626 126, India; Nallamuthu N., Department of Physics, Dayanada Sagar Academy of Technology and Management, Karnataka, Bengaluru, 560 082, India; Sudhahar S., Department of Physics, Alagappa University, Karaikudi, 630 003, India; Kumar M.K., Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, 560 029, India

Rights

Restricted Access

Relation

ISSN: 9574522

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1007/s10854-023-10242-y

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85150951426&doi=10.1007%2fs10854-023-10242-y&partnerID=40&md5=dc8bdef05050b52070bb61343cde5072