期刊
CERAMICS INTERNATIONAL
卷 44, 期 18, 页码 23102-23108出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.09.117
关键词
CoS thin films; Doping; XRD; Interconnected nanoflakes; Electrochemical testing
资金
- Dongguk University
Herein, supercapacitor developed using Mn-doped CoS thin films (1-5% Mn) were prepared using the successive ionic layer adsorption and reaction (SILAR) method. The effect of the Mn-doped CoS thin films on the structural, morphological, and supercapacitor properties were studied using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and electrochemical evaluation. Doping up to 3% Mn lead to improvements in peak intensity. Also, the morphological results indicated that doping of Mn affected the CoS nanostructures. The 3% Mn-doped CoS electrodes had an interconnected nanoflakes-like nanostructure, with a high porosity compared to the other electrodes. XPS data strongly supported the XRD results. The Mn-doped CoS electrodes showed a higher capacitance (621 F g(-1)) than the other electrodes, and electrochemical impedance spectroscopy indicated that the 3% Mn-doped CoS electrode was highly conductive. The characteristics of the 3% Mn-doped CoS electrode proved its applicability in supercapacitors.
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