Highly improved supercapacitance properties of MnFe2O4 nanoparticles by MoS2 nanosheets

Abstract Manganese ferrite (MnFe 2 O 4 ) nanoparticles were synthesized via a hydrothermal method and combined with exfoliated MoS nanosheets, the nanocomposite was studied as supercapacitor. X-ray diffractometry Raman spectroscopy confirmed crystalline structures structural characteristics of nanocomposite. Transmission electron microscopy images showed uniform size distribution MnFe (~ 13 nm) on few-layer nanosheets. UV–visible absorption photospectrometry indicated decrease in bandgap by , resulting higher conductivity that is suitable for capacitance. Electrochemical tests incorporation nanosheets largely increased specific capacitance from 600 to 2093 F/g (with corresponding energy density power 46.51 Wh/kg 213.64 W/kg, respectively) at 1 A/g, led better charge–discharge cycling stability. We also demonstrated real-world application /MoS two-cell asymmetric supercapacitor setup. A functional theory study performed interface analyze how monolayer can enhance electronic properties towards