One-step facile synthesis of porous Co3O4 microspheres as anode materials for lithium-ion batteries

A facile ultrasonic spray pyrolysis method, without any template and organic additive assistance, was demonstrated to synthesize porous Co3O4 microspheres. The X-ray diffraction (XRD) pattern confirmed that this material was pure Co3O4, and the scanning electron microscopy (SEM) images illustrated t...

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Bibliographic Details
Published in:Materials letters 2014-04, Vol.120, p.73-75
Main Authors: Yin, Xing, Wang, Zhixing, Wang, Jiexi, Yan, Guochun, Xiong, Xunhui, Li, Xinhai, Guo, Huajun
Format: Article
Language:English
Subjects:
Anode materials
Lithium-ion batteries
Microstructure
Porous materials
Ultrasonic spray pyrolysis
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Summary:A facile ultrasonic spray pyrolysis method, without any template and organic additive assistance, was demonstrated to synthesize porous Co3O4 microspheres. The X-ray diffraction (XRD) pattern confirmed that this material was pure Co3O4, and the scanning electron microscopy (SEM) images illustrated the porous microsphere morphology of the as-obtained powders. When performed as anode materials for lithium-ion batteries (LIBs), the as prepared Co3O4 material exhibited remarkable cyclic performance with a reversible capacity of 1073mAhg−1 after 50 cycles at a current density of 50mAg−1. Moreover, it retained superior rate performance with the highly reversible capacity of 654mAhg−1 at the current density of 400mAg−1. •Facile one-step synthesis of Co3O4 via ultrasonic spray pyrolysis.•No template or organic additive was added during the synthetic process.•The Co3O4 with porous micro-spherical structure was obtained.•The as prepared Co3O4 anode displayed good electrochemical performance.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2014.01.011