Synthesis and characterization of cobalt molybdate dihydrate nanorods arrays for supercapacitor electrode application

In this endeavor, cobalt molybdate dihydrate materials were synthesized by CTAB assisted hydrothermal method and this material was utilized as electrode materials for supercapacitor application. X-ray diffraction analysis, Fourier transform infrared spectroscopic and Raman spectral analyses confirme...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2021-08, Vol.127 (8), Article 627
Main Authors: Harichandran, G., Radha, S., Yesuraj, J., Muthuraaman, B.
Format: Article
Language:English
Subjects:
Applied physics
Arrays
Capacitance
Characterization and Evaluation of Materials
Cobalt
Condensed Matter Physics
Electrode materials
Energy storage
Fourier transforms
Infrared analysis
Machines
Manufacturing
Materials science
Nanorods
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Processes
Stability tests
Supercapacitors
Surfaces and Interfaces
Synthesis
Thin Films
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Summary:In this endeavor, cobalt molybdate dihydrate materials were synthesized by CTAB assisted hydrothermal method and this material was utilized as electrode materials for supercapacitor application. X-ray diffraction analysis, Fourier transform infrared spectroscopic and Raman spectral analyses confirmed the formation of cobalt molybdate dihydrate materials. CTAB was used to tune the morphological features of the cobalt molybdate dihydrate materials. The nanorod arrays (COM-4 material) were formed when a high concentration of CTAB template was used during the synthesis. The supercapacitor features of the prepared materials were characterized using cyclic voltammetric (CV), galvanostatic charge/discharge (GCD) analysis in 1 M KOH electrolyte. The CV curves confirm the pseudocapacitive nature and provide the specific capacitance of 768 Fg −1 at a scan rate of 5 mVs −1 whereas the GCD curves offer the specific capacitance of 796 Fg −1 at a current density of 1 Ag −1 . The stability test established the capacitance retention of about 95% after 2000 continuous CV cycles at a scan rate of 100 mVs −1 . These findings suggested the significant usage of cobalt molybdate dihydrate materials in energy storage devices.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-021-04748-7