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Chemical synthesis of spinel cobalt ferrite (CoFe2O4) nano-flakes for supercapacitor application by V.S. Kumbhar; A.D. Jagadale; N.M. Shinde; C.D. Lokhande is a Materials Science article available to read on EtoBox.

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The present paper reveals the formation of cobalt ferrite (CoFe2O4) thin film on stainless steel substrate by simple chemical route from an alkaline bath containing Co2+ and Fe2+ ions. The films are characterised for structural, surface morphological and FT-IR properties. The XRD and FT-IR studies revealed formation of single phase of CoFe2O4. The formation of nano-flakes-like morphology is observed from scanning electron microscope. The electrochemical behaviour of CoFe2O4 film has been studied using cyclic voltammetry in 1M NaOH electrolyte. The maximum specific capacitance of 366Fg−1 is obtained at the scan rate of 5mVs−1. Using AC impedance technique equivalent series resistance (ESR) value is found to be 1.1Ω.

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Author

V.S. Kumbhar; A.D. Jagadale; N.M. Shinde; C.D. Lokhande

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0169-4332)

Published

2012

Language

EN

Field

Materials Science (Physical Sciences)