One-step deposition of nanostructured Ni(OH)2/rGO for supercapacitor applications

• Published in: Journal of materials science. Materials in electronics Vol. 34; no. 13; p. 1083
• Main Authors: Kadam, Vishal S., Jagtap, Chaitali V., Lokhande, P. E., Bulakhe, Ravindra N., Kang, Seok-Won, Yadav, Anuja A., Pathan, Habib M.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.05.2023; Springer Nature B.V
• Subjects: Capacitance; Characterization and Evaluation of Materials; Chemical synthesis; Chemistry and Materials Science; Crystal structure; Crystallography; Deposition; Electrochemical analysis; Electrodes; Energy storage; Fuel cells; Graphene; Materials Science; Metal foams; Nanocomposites; Nanostructure; Nanostructured materials; Nickel; Nickel compounds; Nitrates; Optical and Electronic Materials; Physics; Substrates; Supercapacitors; Work stations
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-023-10433-7

To use nanostructured materials for practical applications, scaled quantity production becomes a necessary part of synthesis. The present work demonstrates the simple one-step easy synthesis of Ni(OH) 2 /rGO nanocomposites for supercapacitor applications at scaled quantities. Direct deposition of Ni(OH) 2 /rGO on nickel foam for a supercapacitor was performed using a hydrothermal method. Depending on the size of the autoclave, it is possible to deposit an active mass on a selected substrate. Crystallography and microstructural study results showed the formation of good-quality and required morphology material. The electrochemical characterization performed on Ni(OH) 2 /rGO/Ni exhibited a specific capacitance of 1900 F g −1 at a current density of 1 A g −1 . Capacitance retention of 92.5% is demonstrated after 5000 cycles at a scan rate of 50 mV s −1 . The obtained results suggest that the synthesized material can be used for supercapacitor applications at the mass scale.