ZnO/C复合材料的制备与性能

为了制备ZnO/C复合材料并探讨其吸波性能,利用金属有机骨架MOF-5为前驱物,采用溶剂热法制备了ZnO/C复合材料.利用X射线衍射仪、扫描电子显微镜、傅里叶转换红外光谱分析仪与矢量网络分析仪对ZnO/C复合材料的物相组成、微观结构、形貌及性能进行了分析.结果表明,ZnO/C复合材料是由薄片状组织堆叠形成的完整立方体结构,且ZnO与C分布均匀.当复合材料涂层厚度为7 mm时,在17.18 GHz处的反射损耗可以达到最大幅值.ZnO/C复合材料在远红外区和超远红外区均具有良好的吸波性能.

Preparation and properties of ZnO/C composite

In order to prepare the ZnO/C composite and investigate its microwave-absorbing properties, the metal-organic framework MOF-5 was taken as the precursor, and the ZnO/C composite was prepared with the solvothermal method. The phase constituent, microstructure, morphology and properties of ZnO/C composite were analyzed with X ray diffractometer(XRD), scanning electron microscope(SEM), Fourier transform infrared spectrum analyzer(FTIR)and vector network analyzer(VNA). The results show that the ZnO/C composite possesses the complete cube structure which is completely stacked by sheet structure, and the distribution of ZnO and C is uniform. When the coating thickness is 7 mm, the maximum reflection loss at 17.18 GHz can reach the maximum amplitude. The ZnO/C composite has good microwave-absorbing properties in both far and over-far infrared regions.