Investigation of novel zinc molybdate–graphene nanocomposite for supercapacitor applications

• Published in: Applied physics. A, Materials science & processing Vol. 124; no. 6; pp. 1 - 9
• Main Authors: Reddy, B. Joji, Vickraman, P., Justin, A. Simon
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2018; Springer Nature B.V
• Subjects: Applied physics; Characterization and Evaluation of Materials; Condensed Matter Physics; Electrochemical analysis; Electrode materials; Electrodes; Electron microscopes; Graphene; Machines; Manufacturing; Materials science; Nanocomposites; Nanotechnology; Optical and Electronic Materials; Physics; Physics and Astronomy; Processes; Supercapacitors; Surfaces and Interfaces; Thin Films; X-ray diffraction; Zinc
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-018-1793-0

Novel zinc molybdate–graphene nanocomposite is prepared for the first time in a fast, facile and eco-friendly microwave synthesis route as an electrode material for electrochemical supercapacitors. The as-prepared sample is investigated by X-ray diffraction, FTIR, Raman, scanning electron microscope and transmission electron microscope techniques. The studies have confirmed the formation of ZnMoO 4 and its composite with graphene. The synthesized materials are subjected to electrochemical characterization studies in 2M KOH electrolyte solution which prove that ZnMoO 4 -graphene as an effective electrode material for supercapacitor applications. ZnMoO 4 in its composite behavior has exhibited a specific capacitance of 272.93 F g − 1 at 0.5 A g − 1 with good cyclic stability for 1000 cycles. Graphical abstract