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Enhanced lithium storage capacitance of layered CoFe 2 O 4 &V 2 CT x hybrid anode material synthesized by in-situ hydrothermal method

Journal of Alloys and Compounds, ISSN: 0925-8388, Vol: 918, Page: 165778
2022
  • 13
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  • 1
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  • Citations
    13
    • Citation Indexes
      13
  • Captures
    1

Article Description

CoFe 2 O 4 &V 2 CT x hybrid material was synthesized as a high volumetric performance anode in lithium-ion batteries by an in-situ hydrothermal method. Multilayered V 2 CT x in the hybrid acts as a superior host for homogenous loading CoFe 2 O 4 nanoparticles due to the opened two-dimensional structure of MXene, favorable electrical conductivity and low Li + diffusion barrier. XRD results confirmed CoFe 2 O 4 &V 2 CT x hybrid had been formed, and SEM images showed the spherical CoFe 2 O 4 nanoparticles were randomly deposited on the surface of accordion-like morphology MXene. Being an anode material, it exhibited a good reversible capacity of 638.6 mAh g −1 with 97.8 % coulombic efficiency after 100 cycles at 1 C. In addition, ex-situ X-ray photoelectron spectra revealed that a redox reaction was involved in the Li + ions extraction/insertion process. Our work provides further insight into the hybrid application of the binary metal & layered MXene hybrids as high-performance anode electrodes for lithium-ion batteries.

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