Ammonia-evaporation-induced synthetic method for metal (Cu, Zn, Cd, Ni) hydroxide/oxide nanostructures
Ammonia-evaporation-induced synthetic method for metal (Cu, Zn, Cd, Ni) hydroxide/oxide nanostructures
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DOI：
10.1021/cm070784g
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发表时间：
2008-01-22
影响因子：
8.6
通讯作者：
Wu, Yiying
中科院分区：
文献类型：
--
作者：
Li, Yanguang;Tan, Bing;Wu, Yiying
我们报道了一种氨气蒸发诱导合成金属(Ni，Cu，Zn，Cd)氢氧化物/氧化物纳米结构的方法，包括具有辐射纳米板的分级CuO球，密集分支的氧化锌纳米线，Cd(OH)(2)纳米纤维和Ni(OH)(2)纳米板。这种温和的、不含表面活性剂的方法的一个重要特征是，这些纳米结构在动态环境中生长，溶液中的pH和氨浓度不断下降，这是形成复杂结构的原因。得到的Cd(OH)2纳米纤维和Ni(OH)2纳米板也可以通过后续的热处理转化为氧化物。除了合成和机理研究外，我们还研究了CuO球、CDO纳米纤维和NiO纳米板对锂的电化学反应性能，并展示了它们作为锂离子电池负极材料的潜在应用。
We report an ammonia-evaporation-induced synthetic method for metal (Ni, Cu, Zn, and Cd) hydroxide/oxide nanostructures including hierarchical CuO spheres with radiating nanoplates, densely branched ZnO nanowires, Cd(OH)(2) nanofibers, and Ni(OH)(2) nanoplates. One important feature of this mild and surfactant-free methodology is that these nanostructures grow in a dynamic environment with the continuous decrease of pH and ammonia concentration in the solution, which is responsible for the formation of the complex architectures. The obtained Cd(OH)2 nanofibers and Ni(OH)2 nanoplates can also be converted into oxides by a subsequent thermal treatment. In addition to the synthesis and mechanism studies, we have investigated the electrochemical reactivity of the CuO spheres, CdO nanofibers, and NiO nanoplates toward lithium and demonstrated their potential application as anode materials for lithium ion batteries.