Graphene Anchored with Co3O4 Nanoparticles as Anode of Lithium Ion Batteries with Enhanced Reversible Capacity and Cyclic Performance
Graphene Anchored with Co3O4 Nanoparticles as Anode of Lithium Ion Batteries with Enhanced Reversible Capacity and Cyclic Performance
复制标题
锚定Co3O4纳米粒子的石墨烯作为锂离子电池负极增强可逆容量和循环性能
DOI：
10.1021/nn100740x
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发表时间：
2010-06-01
期刊：
影响因子：
17.1
通讯作者：
Cheng, Hui-Ming
中科院分区：
文献类型：
--
作者：
Wu, Zhong-Shuai;Ren, Wencai;Cheng, Hui-Ming
我们报告了一种简单的策略来合成Co3O4纳米颗粒锚定在导电石墨烯上的纳米复合材料，作为高性能锂离子电池的先进负极材料。得到的Co3O4纳米颗粒尺寸为10-30 nm，作为间隔物均匀地锚定在石墨烯片上，以保持相邻片的分离。这种Co3O4/石墨烯纳米复合材料具有优异的锂电池性能，具有大的可逆容量，优异的循环性能和良好的倍率能力，突出了纳米颗粒在石墨烯片上的锚定对于最大限度地利用电化学活性Co3O4纳米颗粒和石墨烯在高性能锂离子电池中的储能应用的重要性。
We report a facile strategy to synthesize the nanocomposite of Co3O4 nanoparticles anchored on conducting graphene as an advanced anode material for high-performance lithium-ion batteries. The Co3O4 nanoparticles obtained are 10-30 nm in size and homogeneously anchor on graphene sheets as spacers to keep the neighboring sheets separated. This Co3O4/graphene nanocomposite displays superior Li-battery performance with large reversible capacity, excellent cyclic performance, and good rate capability, highlighting the importance of the anchoring of nanopartides on graphene sheets for maximum utilization of electrochemically active Co3O4 nanopartides and graphene for energy storage applications in high-performance lithium-ion batteries.