MoS_(2)/Ti_(3)C_(2)复合材料的制备及储钠研究

Preparation and Sodium Storage of MoS_(2)/Ti_(3)C_(2) Composites

Ti_(3)C_(2)是一种导电性优异的新型二维材料,被广泛应用于储能方面。但是,其片层易发生堆叠,影响了比容量和倍率性能。MoS_(2)具有较高的理论容量,然而,纯MoS_(2)电极导电性较差且在充放电过程中面临巨大的体积膨胀和粉化等问题,容量衰减快和结构不稳定。MoS_(2)与Ti_(3)C_(2)复合能够发挥二者的协同效应,不仅能有效抑制MoS_(2)的体积膨胀和聚集,而且可以有效增强界面电荷转移和界面结构的稳定性。基于此,本研究介绍了MoS_(2)/Ti_(3)C_(2)复合材料的制备方法和储钠研究。

Ti_(3)C_(2) is a new two-dimensional material with excellent electrical conductivity,which is widely used in energy storage.However,its layer is easy to be stacked,which affects its specific capacity and rate performance.MoS_(2) has a high theoretical capacity.However,the poor conductivity of pure MoS_(2) electrode and the huge volume expansion and pulverization in charge and discharge process lead to its rapid capacity decay and structural damage.The composite material of MoS_(2) and Ti_(3)C_(2) can exert the synergistic effect,can not only effectively inhibit the volume expansion and aggregation of MoS_(2),but also effectively enhance the interface charge transfer and the stability of the interface structure.Based on this,the preparation method and sodium storage of MoS_(2)/Ti_(3)C_(2) composite material was introduced.