期刊
NEW JOURNAL OF CHEMISTRY
卷 41, 期 24, 页码 15283-15288出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nj03415f
关键词
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资金
- National Natural Science Foundation of China [51501072, 51472110]
- Natural Science Foundation of Shandong Provincial [ZR2017ZB0316, ZR2016EMB05, 2014ZRB01A47]
Co3O4 has been widely investigated as a promising candidate as an anode material for lithium ion batteries. We report on 2D porous Co3O4 nanosheets synthesized by a self-sacrificing template method for reversible electrochemical lithium storage. The 2D porous nanosheet structures are constructed with numerous nanocrystals with a narrow size distribution, i.e., most of them are 15-30 nm in diameter. The 2D Co3O4 nanosheets with a porous structure may improve the structural stability and collaborative electronic transmission, shorten the diffusion path of ions/electrons, and increase the contact surface between the electrolyte and active material, leading to excellent electrochemical performances. Impressively, a high discharge capacity of 1000 mA h g(-1) is obtained at 400 mA g(-1) after 100 cycles. This implies remarkable potential as an anode for lithium ion batteries.
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