Highly improved supercapacitance properties of MnFe2O4 nanoparticles by MoS2 nanosheets.
TLDR
In this article, MnFe2O4/MoS2 nanoparticles were synthesized via a hydrothermal method and combined with exfoliated MoS2 nanosheets, and the nanocomposite was studied as a supercapacitor.Abstract:
Manganese ferrite (MnFe2O4) nanoparticles were synthesized via a hydrothermal method and combined with exfoliated MoS2 nanosheets, and the nanocomposite was studied as a supercapacitor. X-ray diffractometry and Raman spectroscopy confirmed the crystalline structures and structural characteristics of the nanocomposite. Transmission electron microscopy images showed the uniform size distribution of MnFe2O4 nanoparticles (~ 13 nm) on few-layer MoS2 nanosheets. UV-visible absorption photospectrometry indicated a decrease in the bandgap of MnFe2O4 by MoS2, resulting in a higher conductivity that is suitable for capacitance. Electrochemical tests showed that the incorporation of MoS2 nanosheets largely increased the specific capacitance of MnFe2O4 from 600 to 2093 F/g (with the corresponding energy density and power density of 46.51 Wh/kg and 213.64 W/kg, respectively) at 1 A/g, and led to better charge-discharge cycling stability. We also demonstrated a real-world application of the MnFe2O4/MoS2 nanocomposite in a two-cell asymmetric supercapacitor setup. A density functional theory study was also performed on the MnFe2O4/MoS2 interface to analyze how a MoS2 monolayer can enhance the electronic properties of MnFe2O4 towards a higher specific capacitance.read more
Citations
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References
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Journal ArticleDOI
Scalable ternary hierarchical microspheres composed of PANI/ rGO/CeO2 for high performance supercapacitor applications
TL;DR: In this paper, a highly scalable porous hierarchical microspheres composed of polyaniline nanofibers (PANI), reduced graphene oxide (rGO), and cerium oxide nanorods (CNRs) synthesized through a spray drying method is reported.
Journal ArticleDOI
Synthesis of Ternary Metal Oxides for Battery-Supercapacitor Hybrid Devices: Influences of Metal Species on Redox Reaction and Electrical Conductivity
Ying-Yu Huang,Lu-Yin Lin +1 more
TL;DR: In this article, the NixCoyMozO electrode was optimized by using the Ni:Co:Mo ratio of 1:2:2, which achieved an areal capacitance of 2.94 F/cm2.
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Fabrication of Z-scheme magnetic MoS2/CoFe2O4 nanocomposites with highly efficient photocatalytic activity.
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TL;DR: In this paper, the authors proposed ternary transition metal oxides (TMSO) as the electrode mate material for energy storage systems, which can be used for safer, faster, and more efficient energy storage.