Investigations of CuOx/CuOx-composites as electrode materials and their application in supercapacitors.
Supercapacitors, also known as electrochemical capacitors or ultracapacitors, batteries and fuel cells are effective and practical technologies for electrochemical energy conversion and storage. Because of the high power density, long lifetime, high cycle number and bridging function for the power/energy gap between traditional dielectric capacitors and batteries/fuel cells, supercapacitors have received a considerable amount of attention in recent years.
The properties of supercapacitors are for example influenced by the choice of the electrolyte and the electrode material. The electrode materials can be divided into three groups: carbon materials, conducting polymers and metal oxides. Among the metal oxides ruthenium oxides and manganese oxides are considered the most promising materials for the future.
In this study copper oxides and copper oxide composites will be investigated. For the synthesis of these materials methods like chemical deposition, electrochemical deposition and others should be used. Promising materials will be tested in supercapacitors with different substrates and electrolytes.
As characterization methods X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), infrared spectroscopy (IR), cyclic voltammetry (CV), charge-discharge measurement and electrochemical impedance spectroscopy (EIS) are used.
REFERENCES:
V.D. Patake, S.S. Joshi, C.D. Lokhande, Oh-Shim Joo, Mater. Chem. Phys. 114 (2009) 6-9.
J. Huang, H. Wu, D. Cao, G. Wang, Electrochim. Acta 75 (2012) 208-212.
J.S. Shaikh, R.C. Pawar, R.S. Devan, Y.R. Ma, P.P. Salvi, S.S. Kolekar, P.S. Patil, Electrochim. Acta 56 (2011) 2127-2134.
D.P. Dubal, G.S. Gund, C.D. Lokhande, R. Holze, Mater. Res. Bull. 48 (2013) 923.
D.P. Dubal, D.S. Dhawale, R.R. Salunkhe, V.S. Jamdade, C.D. Lokhande, J. Alloy. Comp. 492 (2010) 26-30.
G. Wang, L. Zhang, J. Zhang, Chem. Soc. Rev. 41 (2012) 797-828.