【摘要】 应用共沉淀法并以原位聚合苯胺包覆Fe3O4作碳源制备Fe3O4/C的复合材料.XRD、SEM、TEM等测试显示,样品中Fe3O4纳米颗粒(40～80 nm)均匀分散在无定形碳的内部.在50 mA.g-1电流密度下,经过30次循环充放电测试,该材料的容量仍保持在1000 mAh.g-1左右.更多还原

【Abstract】 The Fe3O4/Carbon composites have been synthesized through coprecipitation pathway and by insitu aniline polymerization as a carbon source.Structural characterization and morphological study of the composites were investigated by using XRD,SEM and TEM techniques.The results showed that the nanosized Fe3O4 particles(40 ~ 80 nm) were encapsulated in the amorphous carbon.During the electrochemical tests,the Fe3O4/C composites exhibited high capaticity and excellent cycle ability,the retention of capaticity was about 1000 mAh·g-1 after 30 cycles of charge/discharge tests at 50 mA·g-1.更多还原