氧化锡锑/石墨烯的制备及电除盐性能研究

摘要

采用水热合成法制备了不同掺杂比例的氧化锡锑/石墨烯纳米复合材料,用SEM、XPS和XRD进行表征,考察了该材料的电化学性能,并进行CDI测试.实验结果表明,ATO纳米颗粒的嵌入可以有效抑制石墨烯片间的自团聚效应,形成的复合材料呈现3D结构.当m(ATO):m(RGO)为20%时,ATO/RGO复合材料的比电容量(124.1 F/g)和电吸附性能(8.63 mg/g)最佳,远远超出石墨烯(74.3 F/g,3.98 mg/g).%A kind of nano-composite material,antimony tin oxide/reduced graphene oxide(ATO/RGO)with different pro-portions,has been synthesized by hydrothermal method,characterized by SEM,XPS and XRD technologies.Its electrochemical performance has been investigated,and CDI tests accomplished. The experimental results show that the embedding in of antimony oxide(ATO)nano-particles can effectively inhibit the agglomeration effect between graphene sheets,and the composite materials formed exhibits a three-dimentional structure.When m(ATO):m(RGO)is 20%,the specific capacitance of ATO/RGO composite materials is 124.1 F/g and electrosorptive capacity 8.63 mg/g, which are the best.They are far higher than those of graphene,74.3 F/g and 3.98 mg/g,respectively.