期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 147, 期 3, 页码 836-842出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2014.06.028
关键词
Oxides; Nanostructures; X-ray photo-emission spectroscopy (XPS); Electrochemical properties
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2013R1A1A2064471]
- Jeju Sea Grant College Program - Ministry of Land, Transport and Maritime Affairs (MLTM), Korea
- SBS Cultural Foundation
- Korea Institute of Marine Science & Technology Promotion (KIMST) [201402372] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2013R1A1A2064471] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this article, we reported the preparation of manganese molybdate (MnMoO4) nanorods by a facile sonochemical method and investigated its electrochemical properties for supercapacitor applications. The microstructure, surface morphology and composition were characterized by using field emission scanning electron microscope (FE-SEM), high resolution-transmission electron microscopy (HR-TEM), X-ray diffraction analysis (XRD), Raman spectroscopy and X-ray photo electron microscopy (XPS). The cyclic voltammetry (CV) curves of sonochemically synthesized alpha-MnMoO4 nanorods revealed the presence of redox pairs suggesting the pseudocapacitive nature of MnMoO4. A maximum specific capacitance of the alpha-MnMoO4 nanorods was about 168.32 F g(-1) as observed from the galvanostatic charge-discharge (GCD) analysis at a constant current density of 0.5 mA cm(-2). Long term cyclic stability study revealed that about 96% of initial capacitance was retained after 2000 cycles. (C) 2014 Elsevier B.V. All rights reserved.
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