Chemical synthesis of spinel cobalt ferrite (CoFe2O4) nano-flakes for supercapacitor application

被引：259
|
作者：
Kumbhar, V. S. [1 ]
Jagadale, A. D. [1 ]
Shinde, N. M. [1 ]
Lokhande, C. D. [1 ]
机构：
[1] Shivaji Univ, Dept Phys, Thin Film Phys Lab, Kolhapur 416004, MS, India
来源：
APPLIED SURFACE SCIENCE | 2012年 / 259卷
关键词：
Ferrite; Chemical route; Nano-flakes; Supercapacitor; THIN-FILMS; IMPEDANCE SPECTROSCOPY; MAGNETIC-PROPERTIES; DEPOSITION; HYDROXIDE; SURFACE;
D O I：
10.1016/j.apsusc.2012.06.034
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：39 / 43
页数：5
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