RETRACTED ARTICLE: Eco-friendly approach in supercapacitor application: CuZnCdO nanosphere decorated in reduced graphene oxide nanosheets

Abstract

The novel material CuZnCdO metal nanoparticles have been synthesized with different concentrations through green synthesis using fresh A. heterophyllus leaf extract as a reducing agent and graphene oxide derived from A. heterophyllus dead leaves. XRD, FESEM, EDAX, FTIR and FT-RAMAN analysis confirms the structural properties of rGO/CuZnCdO nanoparticles. BET has been used to investigate the surface area of the nanoparticles. It is a very challenging material that shows the highest specific capacitance of 882.5 F/g with non-hazardous and eco-friendly. Without any decay, the charge carrier concentration has performed up to 5000 cycles which indicates the material has good stability. The energy density and power density has been calculated by Ragone plot. This illustrates that the material has high capacitive behavior.

Mechanochemically-assisted synthesis of 3D, 2D and quasi 2D lead halide perovskites for supercapacitor applications

“…34,35 At a particular P A value of B0.17 mW cm À2 , the E A value is higher (B0.038 mW h cm À2 ) for MAPbBr 3 MSP than the corresponding value of B0.011 mW h cm À2 for MAPbBr 3 SCP, which signifies better electrochemical performance for MAPbBr 3 MSP. 36 The air stability of the MAPbBr 3 MSP based electrode was investigated over time by monitoring changes in the XRD patterns of the thick film on a glass slide. Electrochemical impedance spectroscopy (EIS) was performed under 50 mV amplitude of AC voltage.…”

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“…Pure zinc oxide nanoparticles were synthesized through a green approach by using fresh Lagenaria Siceraria peel as a reducing agent. Zinc nitrate hexahydrate was dissolved in deionized water and stirred well for 45 min, and aqueous extract of Lagenaria Siceraria peel was added drop by drop, and the pH value of the solution was adjusted till 8 [43]. The rGO of three different molar concentrations (x = 0.1, 0.2, 0.3 M) was dispersed in 5 ml of methanol and added to the above solution.…”

Enhancing the activity and stability of Cu2O nanorods via coupling with a NaNbO3/SnS2 heterostructure for photoelectrochemical water-splitting

“…3 Hydrogen production using a semiconductor photocatalyst has received much attention in the research of water-splitting to solve the problem of producing energy in an environmentally friendly way. 4,5 Researchers have focused efforts into developing greener and more cost-effective photocatalysts for energy conversion and storage devices such as fuel cells, 6 supercapacitors, 7 battery materials, 8 and water-splitting electrolyzers. 9 Watersplitting through solar energy is one of the most suitable and eco-friendly methods to produce hydrogen as an energy fuel.…”