| Summary: | Recently, composites of MXenes and two-dimensional transition metal dichalcogenides have emerged as promising materials for energy storage applications. In this study, W<sub>2</sub>C/WS<sub>2</sub> alloy nanoflowers (NFs) were prepared by a facile hydrothermal method. The alloy NFs showed a particle size of 200 nm–1 μm, which could be controlled. The electrochemical performance of the as-prepared alloy NFs was investigated to evaluate their potential for application as lithium-ion battery (LIB) anodes. The incorporation of W<sub>2</sub>C in the WS<sub>2</sub> NFs improved their electronic properties. Among them, the W<sub>2</sub>C/WS<sub>2</sub>_4h NF electrode showed the best electrochemical performance with an initial discharge capacity of 1040 mAh g<sup>−1</sup> and excellent cyclability corresponding to a reversible capacity of 500 mAh g<sup>−1</sup> after 100 cycles compared to that of the pure WS<sub>2</sub> NF electrode. Therefore, the incorporation of W<sub>2</sub>C is a promising approach to improve the performance of LIB anode materials.
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