Manganese cobalt oxide nanoflakes for electrochemical energy storage

Manganese cobalt oxide (MnCo 2 O 4 ) nanoflakes are synthesized by a simple hydrothermal process. As a supercapacitor electrode material, MnCo 2 O 4 nanoflake exhibits a specific capacitance of 256 Fg −1 at 5 mV s −1 in symmetric two-electrode configuration. The sample shows an outstanding cyclic st...

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Bibliographic Details
Published inJournal of materials science. Materials in electronics Vol. 33; no. 11; pp. 8484 - 8492
Main Authors Anjana, P. M., Sarath Kumar, S. R., Rakhi, R. B.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.04.2022
Springer Nature B.V
Subjects
Capacitance
Characterization and Evaluation of Materials
Chemistry and Materials Science
Cobalt
Cobalt oxides
Electrode materials
Energy storage
Flux density
Manganese
Materials Science
Optical and Electronic Materials
Supercapacitors
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Summary:Manganese cobalt oxide (MnCo 2 O 4 ) nanoflakes are synthesized by a simple hydrothermal process. As a supercapacitor electrode material, MnCo 2 O 4 nanoflake exhibits a specific capacitance of 256 Fg −1 at 5 mV s −1 in symmetric two-electrode configuration. The sample shows an outstanding cyclic stability of 85% retention of specific capacitance after 10,000 charge–discharge cycles at 2 A g −1 . The MnCo 2 O 4 nanoflake-based supercapacitor material shows an energy density value of 25 Wh kg −1 at a power density of 1 kW kg −1 . The present work establishes the suitability of manganese cobalt oxide nanoflakes for supercapacitor electrodes.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-021-06377-5