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- W4362474632 abstract "Abstract In this work, we successfully synthesized porous C/Fe 3 O 4 microspheres by spray pyrolysis at 700ºC with a sodium nitrate (NaNO 3 ) additive in the precursor solution. Furthermore, we studied their electrochemical properties as anode material for Li-ion batteries. The systematic studies by various characterization techniques show that NaNO 3 catalyzes the carbonization of sucrose and enhances the crystallization of Fe 3 O 4 . Moreover, an aqueous etching can easily remove sodium compounds to produce porous C/Fe 3 O 4 microspheres with large surface areas and pore volumes. The porous C/Fe 3 O 4 microspheres exhibit a reversible capacity of ~780 mAh g –1 in the initial cycles and ~520 mAh g –1 after 30 cycles at a current density of 50 mA g –1 . Moreover, a reversible capacity of ~400 mAh g –1 is attainable after 200 cycles, even at a high current density of 500 mA g –1 . The wide range of pores produced from the removal of sodium compounds might enable easy electrolyte penetration and facilitate fast Li-ion diffusion, while the N-doping can promote the electronic conductivity of the carbon. These features of porous C/Fe 3 O 4 microspheres led to the improved electrochemical properties of this sample. Graphical Abstract" @default.
- W4362474632 created "2023-04-05" @default.
- W4362474632 creator A5014487584 @default.
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- W4362474632 date "2023-04-01" @default.
- W4362474632 modified "2023-10-18" @default.
- W4362474632 title "Synthesis of porous C/Fe3O4 microspheres by spray pyrolysis with NaNO3 additive for lithium-ion battery applications" @default.
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- W4362474632 doi "https://doi.org/10.1007/s10008-023-05463-4" @default.
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