Tetrabutylammonium Perchlorate electrolyte on electrochemical properties of spinel MgCo2O4 nanoparticles

Document Type : Reasearch Paper

Authors

• Saranya Arumugam ¹
• Soundhirarajan Perumal ²
• Gohulkumar Muthusamy ¹
• Silambarasan Murugesan ¹
• Kandiban Ganesan ¹

¹ Department of Physics Vivekanandha College of Arts and Sciences for Women (Autonomous), Tiruchengode, Tamilnadu 637205, India.

² St. Joseph University, Ikishe Model Village Dimapur, Nagaland 797115, India.

Abstract

Spinel magnesium Cobaltite (MgCo₂O₄) nanoparticles with a crystalline size in the range of ∼16 nm were prepared by a simple co-precipitation technique with NaOH as a precipitant. The formation of spinel MgCo₂O₄ phase was confirmed by X-ray diffraction (XRD) pattern. Scanning electron microscope (SEM) images showed that aggregated nanoplates. The electrochemical performance of modified MgCo₂O₄ electrodes was investigated with 2M of tetrabutylammonium perchlorate (TBA) electrolyte. The cyclic voltammetry (CV) results revealed that the MgCo₂O₄ electrode reached the highest specific capacitance of 390 °F/g at a scan rate of 5mV/s. The excellent electrochemical performance was absorbed due to the electrochemical faradaic redox reactions related to the intercalation/de-intercalation of the tetrabutylammonium cation (TBA⁺) and MgCo₂O₄ lattice, and brings an additional pseudocapacitive contribution. The present work proves that the prepared magnesium cobaltite can serve as advanced electrode material for next generation organic electrolyte supercapacitors.

Keywords

• Electrode
• Electrolyte
• Magnesium Cobaltite
• Specific Capacitance
• Supercapacitor

20.1001.1.20088868.2020.11.1.4.2

Main Subjects

• Nanomaterial

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