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Synthesis of binder-free and highly conducting MoS2 sphere like electrode material for supercapacitor application

Binder free spheres like molybdenum disulfide (MoS2) electrode material (E-M) is synthesized on nickel foam by chemical vapor deposition technique. The interconnected spheres like structures are responsible for maximum electrolyte-ions diffusion and control volume-expansion of MoS2 E-M. The synthesi...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2024-07, Vol.685, p.415982, Article 415982
Main Authors: Raza, A., Farid, A., Rasheed, A., Yousaf, Misbah, Ayub, N., Khan, I.A., Ghanem, Mohamed A., Mohammed, Khaled M.H.
Format: Article
Language:English
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Summary:Binder free spheres like molybdenum disulfide (MoS2) electrode material (E-M) is synthesized on nickel foam by chemical vapor deposition technique. The interconnected spheres like structures are responsible for maximum electrolyte-ions diffusion and control volume-expansion of MoS2 E-M. The synthesized sphere-based MoS2 E-M is exhibited specific capacitance of 4200 F/g, energy density and power density of 53–145 Wh/kg and 250–3000 W/kg. The absence of charge transfer resistance and binder free synthesis persuaded the MoS2 E-M to reveal the excellent cyclic stability of 98.76 % even after 4000 cycles. The equivalent series resistance before/after 4000 cycles of MoS2 E-M are −3.54/3.22 Ω. The constant b values are 0.721, 0.759, 0.768 and 0.771 which are greater than 0.5 but less than 1 indicating the hybrid-nature of the synthesied E-M. The diffusive and capacitive contributions are 96,78 and 4, 12 % at 5 and 200 mV/s.. The hybrid-nature of the MoS2 E-M makes it usable for the next-generation electrochemical energy storage devices.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2024.415982