期刊
RSC ADVANCES
卷 3, 期 21, 页码 7850-7854出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra23448g
关键词
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资金
- National Science Foundation of China [51001053, 21271085, 51102114]
- Shandong Province [ZR2010EQ039]
- Doctoral Foundation of University of Jinan [XBS1314]
Co3O4 nanosheets were prepared by selectively dealloying CoAl alloys at room temperature, and their thicknesses could be easily controlled to be similar to 6 nm, similar to 100 nm and similar to 500 nm. Then they were employed as anodes for lithium-ion batteries to study the electrochemical performance as a function of the thickness of the nanosheets. The results showed that the thinner they were, the better performance they presented, especially at high current density. Thereinto, the obtained similar to 6 nm-thick Co3O4 sheets demonstrated an initial capacity of 1259.5 mA h g(-1) as well as an excellent capacity stability.
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