Green Fabrication of Hierarchical CuO Hollow Micro/Nanostructures and Enhanced Performance as Electrode Materials for Lithium-ion Batteries
Green Fabrication of Hierarchical CuO Hollow Micro/Nanostructures and Enhanced Performance as Electrode Materials for Lithium-ion Batteries
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多级CuO中空微纳米结构的绿色制备及其作为锂离子电池电极材料的性能增强
DOI：
10.1021/jp808545r
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发表时间：
2008-12-11
影响因子：
3.7
通讯作者：
Jiang, Kai
中科院分区：
文献类型：
--
作者：
Gao, Shuyan;Yang, Shuxia;Jiang, Kai
采用酪氨酸辅助的绿色策略实现了CuO中空微/纳米结构的工程化分级结构。采用扫描电子显微镜（SEM）、X射线衍射（XRD）和X射线光电子能谱（XPS）对样品的形貌、成分和相结构进行了表征。250 nm，自缠绕形成外径为1.5 - 3 μm的中空内部。对Li吸收-释放的改善的电化学性能验证了它们作为锂离子电池中的阳极材料的潜在应用，这归因于所形成的新颖CuO结构的三维集流体网络和化学/机械鲁棒性缓冲。
Engineering hierarchical CuO hollow micro/nanostructures was realized by a tyrosine-assisted green strategy. The morphology, composition, and phase structure of as-prepared powders were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), which showed that the sample was assembled from CuO nanosheets with average diameter of ca. 250 nm, self-wrapping to form hollow interiors with an outer diameter of 1.5−3 μm. The improved electrochemical performance toward Li uptake-release verifies their potential application as anode materials in lithium-ion batteries, which attributes to a three-dimensional current collector network and a chemical/mechanical robustness buffer of the as-formed novel CuO structure.