期刊
APPLIED SURFACE SCIENCE
卷 259, 期 -, 页码 39-43出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2012.06.034
关键词
Ferrite; Chemical route; Nano-flakes; Supercapacitor
类别
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi [03(1165)10/EMR-II]
- University Grant Commission (UGC), New Delhi (India) through DSA-I program
- Department of Science and Technology through DST-PURSE
- Department of Science and Technology through FIST
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 1 M NaOH electrolyte. The maximum specific capacitance of 366 F g(-1) is obtained at the scan rate of 5 mV s(-1). Using AC impedance technique equivalent series resistance (ESR) value is found to be 1.1 Omega. (C) 2012 Elsevier B. V. All rights reserved.
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