期刊
CHINESE JOURNAL OF CHEMICAL PHYSICS
卷 24, 期 3, 页码 343-347出版社
CHINESE PHYSICAL SOC
DOI: 10.1088/1674-0068/24/03/343-347
关键词
Co3O4; Urchin-like structure; Hydrothermal; Lithium ion battery; Discharge capacity
资金
- National Natural Science Foundation of China [11074254]
- Ministry of Science and Technology of China [2005CB623603]
- Chinese Academy of Sciences
- President Foundation of Hefei Institute of Physical Sciences
3D urchin-like Co3O4 have been successfully prepared by calcination of the urchin-like precursors, which were synthesized through a facile hydrothermal route. The morphology and structure of the 3D urchin-like Co3O4 have been characterized by field emission scanning electron microscopy, transmission electron microscopy, high resolution transmission electron microscopy, and X-ray powder diffraction. The as-synthesized Co3O4 products are of urchin-like structures with approximated 5-7 mu m in diameter, and are composed of numerous nanoparticles chains with the particles diameter of about 15 nm. This kind of urchin-like Co3O4 exhibits superior energy storage properties with the high capacity of 1.369 Ah/g and its good cyclic stability shows great potential in the rechargeable Li-ion battery.
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