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首页> 外文期刊>Crystal growth & design >Fabrication of Architectures with Dual Hollow Structures: Arrays of Cu2O Nanotubes Organized by Hollow Nanospheres
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Fabrication of Architectures with Dual Hollow Structures: Arrays of Cu2O Nanotubes Organized by Hollow Nanospheres

机译:具有双重空心结构的体系结构的制造:空心纳米球组织的Cu2O纳米管阵列。

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Highly ordered array of hierarchical nanotubes constructed from Cu2O hollow nanospheres with a diameter of 165-185 nm and shell thickness of 20-40 nm has been synthesized by using all array of Cu(OH)(2) nanorods as a sacrificial template, The formation Of Cu2O nanotubes is considered to be the result of the "Kirkendall effect", while evolution of the Cu2O hollow nanospheres from solid nanospheres in the walls results from the "Ostwald ripening" process. Furthermore, the Kirkendall effect in nanoscaled synthesis has been directly proven by the successful design and synthesis of arrays Of Cu2O/Cu2-xSe heterogeneous nanotubes constructed from Cu2O hollow seminanospheres covered on both the inner and the outer surfaces Of Cu2-xSe sheaths with a thickness about 5-10 nm, in which the diffusion rate of copper ions through the Cu2-xSe sheaths is shown to be double that of ascorbic acid molecules during the reaction process. This work offers a new strategy to study the diffusion rate relationship between diffusion couple in nanoscaled synthesis and provides a novel approach for controllable synthesis of hierarchical architectures with dual hollow nanostructures.
机译:通过使用所有阵列的Cu(OH)(2)纳米棒作为牺牲模板,合成了由直径为165-185 nm,壳厚度为20-40 nm的Cu2O空心纳米球构成的高度有序的纳米管阵列。 Cu2O纳米管的产生被认为是“柯肯德尔效应”的结果,而壁中的固态纳米球从中产生的Cu2O空心纳米球的演化是由“奥斯特瓦尔德熟化”过程引起的。此外,成功设计和合成了由Cu2O空心半纳米球构成的Cu2O / Cu2-xSe异质纳米管阵列,并成功地对其进行了设计和合成,该阵列覆盖了Cu2-xSe鞘的内表面和外表面,并具有一定厚度大约5-10 nm,其中铜离子通过Cu2-xSe鞘的扩散速率在反应过程中显示为抗坏血酸分子的两倍。这项工作提供了一种新的策略来研究纳米级合成中扩散对之间的扩散速率关系,并为可控制的具有双空心纳米结构的层次结构的合成提供了一种新方法。

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