Journal of Materials Science, Vol.56, No.3, 2486-2496, 2021
Accordion-like composite of carbon-coated Fe3O4 nanoparticle decorated Ti3C2 MXene with enhanced electrochemical performance
MXene-based materials are considered to be promising candidates for electrodes in energy storage field owing to their features of two-dimensional layered structure, good conductivity, and chemical stability. Carbon-coated Fe3O4 nanoparticles (C@Fe(3)O(4)NPs)-decorated Ti(3)C(2)MXene composites were synthesized via a facile method for the first time. The prepared C@Fe3O4 NPs/Ti3C2 MXene composite was characterized by various techniques (XRD, SEM, TEM, TGA, and XPS), and the results showed that C@Fe(3)O(4)NPs (diameter: 60 nm, layer thickness: 10 nm) were homogeneously distributed on the surfaces of Ti3C2 MXene interlayers while the accordion-like structure maintained. It is noted that the specific surface areas dramatically increased from 7.8 m(2)/g to 37.0 m(2)/g after introducing the nanoparticles. The C@Fe(3)O(4)NPs/Ti3C2 MXene products exhibited a specific capacity of 231.5 mAh g(-1)after 200 cycles under 100 mA/g when serving as anode materials for Li-ion batteries, which was markedly higher than that of pure Ti3C2 MXene (107.8 mAh g(-1)). This study presents and investigates a novel kind of MXene-based composite, which has the potential as electrode materials for energy storage. [GRAPHICS] .