物理化学学报2017，Vol.33Issue(4)：845-852,8.DOI:10.3866/PKU.WHXB201612222
三维介孔钴酸锌立方体的制备及其优异的储锂性能
Synthesis and Lithium Storage Performance of Three-Dimensional Mesostructured ZnCo2O4 Cubes
摘要
Abstract
Novel three-dimensional (3D) mesostructured ZnCo2O4 cubes are prepared through a convenient and practical hydrothermal route combined with an annealing treatment.The as-prepared ZnCo2O4 cubes range from 3-4 μm in size,and are composed of a large number of nanoparticles and pores.According to N2 adsorption-desorption measurements,the as-synthesized ZnCo2O4 cubes have a high BET surface area (41.4 m2·g-1) and mesoporous (6.32 nm) nature.Lithium ion batteries (LIBs) are assembled using the as-prepared ZnCo2O4 nanomaterial and metallic lithium as the anode and the cathode,respectively,and their lithium storage performance is investigated.The electrode material exhibits highly reversible lithium storage capacity and strong cycling stability at high current density for 100 cycles.More importantly,the ZnCo2O4 cube electrode still presents a relatively high specific capacity at high rate.The excellent lithium storage performance is attributed to the novel structure of the 3D mesostructured cubes,which can facilitate Li+ diffusion,increase electrode/electrolyte contact area,and endure volume changes the during Li+ insertion/extraction process.关键词
钴酸锌纳米材料/介孔结构/三维立方体/锂离子电池/负极材料Key words
ZnCo2O4 nanomaterial/Mesostructure/Three-dimensional cube/Lithium ion battery/Anode material分类
化学化工引用本文复制引用
甄绪,郭雪静..三维介孔钴酸锌立方体的制备及其优异的储锂性能[J].物理化学学报,2017,33(4):845-852,8.基金项目
The project was supported by the National Natural Science Foundation of China (12HZGJHZ01100).国家自然科学基金(12HZGJHZ01100)资助项目 （12HZGJHZ01100）
