TBAB添加剂辅助水热法合成二硫化钼微球及其DSC光电性能研究

Research on synthesizing molybdenum disulfide microspheres by using TBAB additive-assisted hydrothermal process and its DSCLI photoelectric properties

以钼酸钠为钼源,硫脲为硫源,以四丁基溴化铵(TBAB)为添加剂,采用水热法制备了MoS_2微球,探究了TBAB用量对MoS_2的形貌及其作为对电极材料的电化学性能的影响。结果表明:随着TBAB用量的增多,二硫化钼的形貌有较大变化,由类球状结构到完整的微球结构再到不规则的堆积。其中,添加了3gTBAB制备的MoS_2具备完整的微球结构,大小较均匀,光电转换效率4.73%,达到Pt对电极转换效率(5.31%)的89%,催化活性达到最佳状态。因此,合适的TBAB用量对MoS_2的结构形貌及光电性能的影响至关重要。

In this paper, the author prepared MoS2 microspheres with hydrothermal method to explore how the dosage of Tetrabutylammo-nium bromide (TBAB) influence on MoS2's appearance and its electrochemical performance when it is used as the electrode material by taking sodium molybdate as molybdenum source , hiourea as sulfur source and regarding Tetrabutylammonium bromide (TBAB) as addictive .The results show that with the increase of the amount of TBAB, the appearance of molybdenum disulfide has changed greatly. It changed from the spheroid sphaeroid to the complete microspheres and then to the irregular accumulation. Among them, MoS2 prepared by adding 3g TBAB has a complete microsphere structure, its size is relatively uniform, its photoelectric conversion efficiency reaches 4.73%, and the conversion efficiency of Pt to the electrode (5. 31%) is 89%, and the catalytic activity reaches the optimal state. Therefore, the appropriate amount of TBAB is critical to the structure and appearance and electrochemical performance of MoS2.