Size-controlled synthesis and electrochemical characterization of spherical CeO2 crystallites

作者：Zhou Fu; Ni Xiaomin^*; Zhang Yongfeng; Zheng Huagui

来源：Journal of Colloid and Interface Science, 2007, 307(1): 135-138.

DOI：10.1016/j.jcis.2006.11.005

• ceria
• size control
• electrochemical properties
• lithium insertion

Spherical ceria (CeO2) crystallites assembled by nanoparticles were synthesized by hydrothermal treatment of Ce(NO3)(3)center dot 6H(2)O using poly(N-vinyl-2-pyrrolidone) (PVP) as surfactant. It was found that these spheres were developed from the gradual aggregation of small nanoparticles and size of the spheres could be tailored by adjusting the reagent concentrations. Electrochemical tests indicated that thus-prepared CeO2 spheres exhibited size-dependent discharge capacities and good cyclability in the Li/CeO2 couple, showing their promising usages as anode materials in the lithium ion battery.

• 出版日期2007-3-1
• 单位中国科学技术大学