Abstract
This study reports a facile hydrothermal synthesis of Copper tungsten oxide (CuWO4) and CuWO4-reduced graphene oxide hybrid nanoparticles and its application as an electrode for supercapacitor application. The morphology and composition has been characterized using X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and EDAX. The supercapacitive behavior has been studied from cyclic voltammetry and galvanostatic charge-discharge tests. The CuWO4-reduced graphene oxide hybrid nanoparticles show highest specific capacitance of 35.71 F/g at a current density of 0.25 A/g with excellent cycling stability.
Highlights
The rising consumption of energy and the rapid depletion of global energy resources have made researchers (Dresselhaus and Thomas, 2001; Eisenberg and Nocera, 2005) to develop alternate energy sources
In this study we have reported the facile hydrothermal synthesis of CuWO4 and CuWO4reduced graphene oxide hybrid nanostructures
The cyclic voltammetry curves of 80 mg CuWO4-reduced graphene oxide hybrid nanostructures at different scan rates can be examined from the Fig. 4(b)
Summary
The rising consumption of energy and the rapid depletion of global energy resources have made researchers (Dresselhaus and Thomas, 2001; Eisenberg and Nocera, 2005) to develop alternate energy sources. Many works have been reported on graphene based metal oxides (Liu et al, 2010b; Wang et al, 2015; Dong et al, 2012; Huang et al, 2012) to enhance the performance of supercapacitor because graphene shows (Geim, 2009) large surface area, high electrical conductivity (Neto et al, 2009), thermal conductivity (Balandin, 2011), profuse interlayer structure and excellent mechanical stability. The working electrode for electrochemical measurement was prepared by mixing the obtained sample with ethanol and coating it on nickel foam. The electrochemical performance of the CuWO4 and CuWO4-reduced graphene oxide hybrid nanostructures was observed by a three electrode electrochemical test using a Potentiostat (PG-16125, Techno science instrument, Bangalore, India) in 3M aqueous KOH solution. Where, ‘I’ is the discharge current, ‘m’ is the mass of sample loaded on the working electrode and ‘dV/dt’ is the slope of the discharge curve
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: American Journal of Engineering and Applied Sciences
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
