Mechanochemically induced transformation of CoO(OH) into Co3O4 nanoparticles and their highly reversible Li storage characteristics
- Authors
- Park, Jae-Wan; Park, Cheol-Min
- Issue Date
- 2017
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.7, no.17, pp 10618 - 10623
- Pages
- 6
- Journal Title
- RSC ADVANCES
- Volume
- 7
- Number
- 17
- Start Page
- 10618
- End Page
- 10623
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/22527
- DOI
- 10.1039/c6ra26099c
- ISSN
- 2046-2069
- Abstract
- A simple synthetic method for the mechanochemically induced transformation of cobalt oxyhydroxides (CoO(OH)) into cobalt oxide (Co3O4) nanoparticles is developed. Using this method, extremely small and well-dispersed Co3O4 (3-5 nm) nanoparticles are synthesized and their use as a high-performance anode for Li-ion batteries is evaluated. The Co3O4 nanoparticle electrode shows excellent electrochemical performances such as a highly reversible capacity of 1023 mA h g(-1) with excellent cycling behavior over 100 cycles and a superior rate capability of 760 mA h g(-1) at an extremely fast current rate of 3C. This simple mechanochemically induced transformation method for extremely small and well-dispersed cobalt oxide nanoparticles is highly applicable to the preparation of other metal oxide nanoparticles for obtaining highly reversible Li storage characteristics.
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Collections - Department of Materials Science and Engineering > 1. Journal Articles
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