Electrochemical performance comparison study of ternary RGO/ß-Ni(OH)2-CeO2 nanocomposite prepared from hydrothermal and solid-state methods for supercapacitors. (18th March 2021)

• Record Type: Journal Article
• Authors: Godlaveeti, Sreenivasa Kumar; Jangiti, Sravani; Bharatiya, Debasrita; Somala, Adinarayana Reddy; Sana, Siva Sankar; Nagireddy, Ramamanohar Reddy
• Is Part Of: Advances in natural sciences. Volume 12:Number 1(2021)
• Publication Date: 2021-03-18
• Subjects: supercapacitor -- nickel foam -- RGO/ß-Ni(OH)2-CeO2 -- hydrothermal -- solid-state method; Nanotechnology -- Periodicals; Nanoscience -- Periodicals; 620.5
• DOI: 10.1088/2043-6262/abebd5
• Languages: English
• ISSNs: 2043-6254

Abstract

Abstract: In this paper, a novel ternary RGO/ β -Ni(OH)2 -CeO2 nanocomposite (NC) was synthesised through facile, one-step hydrothermal, and solid-state methods. The structural, morphological, and elemental composition analyses of powder composites were characterised by various techniques such as XRD, FTIR, TEM, and EDX. The electrochemical performance of RGO/ β -Ni(OH)2 -CeO2 composites prepared by hydrothermal and solid-state methods coated on Ni foam in presence of 3 M KOH an aqueous solution was studied through CV, GCD, and EIS techniques. The specific capacitance of 788 F g −1 achieved at a current density 0.5 A g −1 was observed for the SSM-2 sample at 250 °C calcination temperature as a result of the synergic effect and combination of RGO, β -Ni(OH)2, CeO2 compounds. The obtained electrochemical results show that the present novel ternary RGO/ β -Ni(OH)2 -CeO2 working electrode fabricated from the solid-state method is suitable for the next generation supercapacitor applications.