Materials Chemistry and Physics, Vol.94, No.2-3, 221-225, 2005
Preparation and electrochemical capacitance of brown-millerite SrCoO2.5 as electrode materials for supercapacitor
In this paper, brown-millerite type SrCoO2.5 Ultrafine powders were prepared and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The electrochemical capacitance of SrCoO2.5 electrode was examined by cyclic voltammetry, impedance and galvanostatic charge-discharge measurements. The specific capacitance of 168.5 F g(-1) for SrCoO2.5 could be obtained in the range of 0.1-0.7 V. (c) 2005 Elsevier B.V. All rights reserved.