文摘采用简单的水解、热处理方法合成三氧化二铁(Fe2O3)负载在三维多级孔类石墨烯(3D HPG)上的复合材料.3D HPG有效的导电网络有利于负载纳米Fe2O3,使其呈均匀分散状态,并有效增强纳米复合物的导电率,提高Fe2O3利用率,抑制纳米Fe2O3的团聚,从而制得稳定、高性能的锂离子电池负极材料.Fe2O3-3D HPG电极在50m A·g-1电流密度下首次放电容量达1745 m Ah·g-1,50周期放电容量保持于1095 m Ah·g-1.
基金National Key Research and Development Program(2016YFA0200101)Natural Scientific Foundation of China(21422604)+1 种基金Beijing Municipal Commission of Science and Technology(Z161100002116019)Tsinghua University Initiative Scientific Research Program~~
基金supported by the Key Project of Shanghai Science and Technology Committee(14231200300)Shanghai Key Laboratory of Green Chemistry and Chemical Processes~~
