期刊
MATERIALS RESEARCH BULLETIN
卷 47, 期 3, 页码 672-676出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2011.12.029
关键词
Thin film; Chemical synthesis; Electrochemical measurements
资金
- Council for Scientific and Industrial Research (CSIR), New Delhi (India) [03(1165)/10/EMR-II]
In the present study, we report, for the first time, the synthesis of cobalt oxyhydroxide thin films on inexpensive stainless steel substrate using potentiodynamic electrodeposition method. These films were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) techniques. The orthorhombic crystal structure was revealed by the X-ray diffraction study. The FT-IR spectrum confirmed the formation of cobalt oxyhydroxide. The SEM studies showed the nanoflakes-like morphology with an average thickness of 100 nm. The cyclic voltammetry study of the cobalt oxyhydroxide films in 1 M KOH showed maximum specific capacitance of 449 F g(-1) at scan rate of 5 mV s(-1). (C) 2011 Elsevier Ltd. All rights reserved.
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