Layered transition metal dichalcogenides (MX, M=Mo, W, Sn, V, etc; X = S, Se, Te) have large ion transport channel and high specific capacity, making them promising for large sized… Click to show full abstract
Layered transition metal dichalcogenides (MX, M=Mo, W, Sn, V, etc; X = S, Se, Te) have large ion transport channel and high specific capacity, making them promising for large sized Na+/K+ storage. Nevertheless, slow reaction kinetics and huge volume expansion will induce an undesirable electrochemical performance. Numerous efforts have been devoted to design the MX anodes and enhance their electrochemical performance. Based on the metal- organic assembly strategy, the nanostructure engineering, carbon combination, and component regulation can be easily realized, which effectively boost the performance of the MX anodes. In this review, we present a comprehensive overview on the synthesis of MX nanostructure using the metal-organic assembly strategy, which can realize the design of MX nanostructure, based on self-sacrificial template, host@guest tailored template, post-modified layer and derivative template. The preparation routes and structure evolution are mainly discussed. Then, the Mo, W, Sn, V-based dichalcogenides used for the Na+/K+ storage are reviewed, and the relationship between the structure and the electrochemical performance, as well as the energy storage mechanism are emphasized. In addition, the existing challenges and future perspectives are also presented.
               
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