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中文摘要：
以碳纳米管和氧化石墨烯（CNTs/GO）为主体材料,通过化学还原法制备了CNTs/GO负载硫的复合正极材料CNTs/GO/S.扫描电子显微镜（SEM）及透射电子显微镜（TEM）测试表明,CNTs均匀插层在GO片间,从而形成三维多孔结构,有利于电解液的浸润;活性物质硫均匀地负载在CNTs/GO表面.电化学测试表明,CNTs/GO/S复合材料具有高的比容量和良好的循环稳定性：在1C倍率电流密度下,复合材料首次放电比容量高达904mAh·g-1,经过50圈循环之后,复合材料的比容量仍保持在578mAh·g-1.
英文摘要：
Three-dimensional （3D） hierarchical CNTs/GO/S ternary composites were prepared by solution-based reaction-deposition,using graphene oxide （GO） and carbon nanotubes （CNTs） as precursors.Scanning electron microscopy （SEM） and transmission electron microscope （TEM） indicated a uniform S coating on CNTs/GO which arose because of the large GO specific surface area.CNTs interspersed between the GO layers to form a 3D porous structure.Constant current charge-discharge tests showed that CNTs/GO/S composites had a high discharge capacity and excellent cycling stability,and delivered a high initial discharge capacity of 904 mAh · g-1 at 1C rate.After 50 cycles at the same rate,the reversible capacity remained at 578 mAh · g-1.
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