三维花状Fe_2(MoO_4)_3微米球的水热制备及电化学性能  

3D Flower-Like Fe_2(MoO_4)_3 Micron-Spheres: Synthesis and Applications in Lithium-Ion Batteries

作　　者：郑浩[1,2] 李琳[1,2] 高虹[2,3] 张晴[2,3] 王石泉[2,3] 冯传启[1,2,3] 

机构地区：[1]安顺学院功能材料与资源化学重点实验室,安顺561000 [2]有机化工新材料湖北省协同创新中心,武汉430062 [3]湖北大学有机功能分子合成与应用教育部重点实验室,武汉430062

出　　处：《无机化学学报》2014年第12期2761-2766,共6页Chinese Journal of Inorganic Chemistry

基　　金：贵州省科学技术厅;安顺市人民政府;安顺学院联合基金项目(NO.LKA[2013]17)资助项目

摘　　要：以Fe Cl3·7H2O和Na2Mo O4为原料,采用水热合成法制备三维花状Fe2(Mo O4)3微米球。探讨不同合成温度对样品形貌的影响,利用XRD、SEM和EDS等分析技术对样品的结构、形貌进行了表征,对该材料的电化学性能进行了测试。结果表明:Fe2(Mo O4)3微米球是由二维纳米片自组装而成的花状结构,合成温度为160℃时,制备的样品具有良好的电化学性能,当电流密度为100 m A·g-1,首次放电比容量为1 431 m Ah·g-1;并具有较好的循环性能和倍率性能。并对160℃合成样品表现较好电化学性能的原因进行了探讨。3D flower-like Fe2（MoO4）3 micron-spheres were hydrothermally prepared using FeCl3·7H20 and Na2MoO4 as raw materials. The structure and morphology were characterized by XRD, SEM, and EDS techniques, and the electrochemical performances were also studied. The results show that the samples are 3D flowerlike micron-spheres composed of nanosheets with width about 100 nm. The 3D flower-like Fez（MoO4）3 micron-spheres synthesized at 160 ℃ exhibit the best electrochemical properties with a initial capacity of 1431 mAh .g^-1 at an current density of 100 mA .g^-1. The reasons for outstanding electrochemical property of the samples prepared at 160 ℃ were discussed also in this work.

关 键 词：Fe2(MoO4)3 水热合成 锂离子电池 负极材料 

分 类 号：O614.811[理学—无机化学] O614.61[理学—化学]