Synthesis of ZnO-ZnCo2O4 hybrid hollow microspheres with excellent lithium storage properties

被引：63
作者：
Xie, Qingshui [1 ]
Zeng, Deqian [1 ]
Ma, Yating [1 ]
Lin, Liang [1 ]
Wang, Laisen [1 ]
Peng, Dong-Liang [1 ]
机构：
[1] Xiamen Univ, Fujian Key Lab Adv Mat, Collaborat Innovat Ctr Chem Energy Mat, Dept Mat Sci & Engn,Coll Mat, Xiamen 361005, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2015年 / 169卷
基金：
中国国家自然科学基金;
关键词：
Zinc oxide; Zinc cobalt oxides; Hybrid hollow microspheres; Anodes; Lithium ion batteries; PERFORMANCE ANODE MATERIAL; MOLTEN-SALT METHOD; ION BATTERY ANODE; ENHANCED ELECTROCHEMICAL PERFORMANCE; LI-CYCLING PROPERTIES; ZNCO2O4; MICROSPHERES; FACILE SYNTHESIS; CO3O4; COMPOSITE; CAPACITY;
D O I：
10.1016/j.electacta.2015.04.041
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
ZnO-ZnCo2O4 hybrid hollow microspheres are successfully produced via an annealing process of the pre-fabricated zinc-cobalt citrate hollow microspheres in air. ZnO and ZnCo2O4 have homogeneous distribution within the whole hollow microspheres. The gained hybrid hollow microspheres deliver outstanding lithium storage properties when utilized as the anode material in lithium ion batteries. A high reversible capacity of 1199 mA h g (1) can be retained after 200 cycles. The exceptional electrochemical properties of the hybrid hollow microspheres are ascribed to the synergetic effect between ZnO and ZnCo2O4 nanoparticles, the catalytic effect of Co nanocrystals, the favorable hollow structures together with the nanometer-sized building blocks of hybrid microspheres. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：283 / 290
页数：8
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