硫化钼分层纳米材料的制备及赝电容性能综合实验设计

Comprehensive Experimental Design for the Preparation and Pseudocapacitance Properties of Layered Molybdenum Sulfide Nanomaterials

实验以钛网为基底,通过简单的水热沉积法制备具有三维多孔分层结构的MoS2纳米材料。利用X射线衍射仪、透射电镜等进行结构及形貌表征,利用电化学工作站进行赝电容性能测试。结果表明,制备的材料呈三维分层结构的花状球体,比表面积大,活性位点多,具有高放电比电容和长时间循环稳定性,具有优异的赝电容性能。该综合实验体系完整,内容丰富,涉及制备、表征、性能测试等多个环节,可锻炼学生的实操能力,了解相关领域前沿,培养学生的科研意识和创新能力。

The three dimensional porous layered MoS2 nanomaterial was prepared by simple hydrothermal deposition with titanium mesh as substrate. The structure and morphology were characterized by X-ray diffractometer and transmission electron microscope and so on. The performance of pseudocapacitance was tested by electrochemical workstation. The experimental results show that the prepared material presents three-dimensional layered flower sphere with large specific surface area, many active sites, high discharge specific capacitance and long cycle stability, indicating excellent pseudocapacitance performance. The comprehensive experiment is complete and rich in content, involving preparation, characterization, performance testing, which can exercise students’ practical operation ability, understand the frontier of relevant fields, and cultivate students’ scientific research consciousness and innovative ability.