纳米CoFe2O4/GNS负极制备及其电化学性能研究

doi:10.13208/j.electrochem.130722

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (2): 101-104. doi: 10.13208/j.electrochem.130722

纳米CoFe₂O₄/GNS负极制备及其电化学性能研究

蔡默超，蔡森荣，郑明森，董全峰^*

厦门大学固体表面物理化学国家重点实验室，化学化工学院化学系，福建厦门 361005

收稿日期:2013-07-22 修回日期:2013-08-01 出版日期:2014-04-28 发布日期:2014-04-17
通讯作者: 董全峰 E-mail:qfdong@xmu.edu.cn
基金资助:
国家自然科学基金项目（No. 200933005，No. 21021002）、国家973计划项目（No. 2009CB220102）、厦门市纯电动汽车重大专项（Ⅰ期）（No. 3502Z20121002）和国家基础科学人才培养基金项目（No. J1210014）资助

Preparation and Electrochemical Performances of CoFe₂O₄/GNS Nanocomposites as Anode Material for Lithium Ion Battery

CAI Mo-chao, CAI Sen-rong, ZHENG Ming-sen, DONG Quan-feng^*

State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen 361005, Fujian, China

Received:2013-07-22 Revised:2013-08-01 Published:2014-04-28 Online:2014-04-17
Contact: DONG Quan-feng E-mail:qfdong@xmu.edu.cn

摘要/Abstract

摘要： 采用溶剂热法一步合成纳米尺寸CoFe₂O₄/GNS复合材料（直径约为15 nm），其颗粒尺寸均一，且均匀分散于石墨烯表面. 电化学测试结果表明，该复合物电极具有良好的循环和倍率性能，500 mA·g^-1电流密度下100周期循环比容量稳定在709 mAh·g^-1, 容量保持率高达95.8%；2 A·g^-1电流密度，其比容量仍高达482 mAh·g^-1.

关键词: 溶剂热法, CoFe₂O₄, 负极材料, 纳米材料

Abstract: The CoFe₂O₄/GNS was synthesized by a simple one-pot solvothermal method. The results obtained by X-ray diffraction (XRD) and transmission electron microscopy (TEM) showed that the CoFe₂O₄ particles with sizes of 15 nm dispersed on the surface of graphene uniformly. Electrochemical tests indicated that the CoFe₂O₄/GNS nanocomposite exhibited excellent cyclic stability with almost 95.8% capacity retention after 100 cycles at the current density of 500 mA·g^-1 and delivered a high reversible capacity of 482 mAh·g^-1 at the current density of 2 A·g^-1.

Key words: solvothermal method, CoFe₂O₄, anode material, nanoparticle

中图分类号:

O646

蔡默超，蔡森荣，郑明森，董全峰*. 纳米CoFe₂O₄/GNS负极制备及其电化学性能研究[J]. 电化学（中英文）, 2014, 20(2): 101-104.

CAI Mo-chao, CAI Sen-rong, ZHENG Ming-sen, DONG Quan-feng*. Preparation and Electrochemical Performances of CoFe₂O₄/GNS Nanocomposites as Anode Material for Lithium Ion Battery[J]. Journal of Electrochemistry, 2014, 20(2): 101-104.

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纳米CoFe₂O₄/GNS负极制备及其电化学性能研究

Preparation and Electrochemical Performances of CoFe₂O₄/GNS Nanocomposites as Anode Material for Lithium Ion Battery

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