Engineering nonspherical hollow structures with complex interiors by template-engaged redox etching.
Engineering nonspherical hollow structures with complex interiors by template-engaged redox etching.
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DOI：
10.1021/ja107871r
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发表时间：
2010-10
影响因子：
15
通讯作者：
Zhiyu Wang;Deyan Luan;Chang Ming Li;F. Su;S. Madhavi;F. Boey;X. Lou
中科院分区：
文献类型：
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作者：
Zhiyu Wang;Deyan Luan;Chang Ming Li;F. Su;S. Madhavi;F. Boey;X. Lou
尽管在制造中空结构方面取得了重大进展，但该领域中的一个未解决的挑战是如何设计具有特定形状、可调组成和期望的内部结构的中空结构。特别是，自上而下的工程内部预制空心结构仍然是一项艰巨的任务。在这项工作中，我们展示了一种简便的方法来制备各种均匀的中空结构，包括Cu（2）O@Fe（OH）（x）纳米晶格和Fe（OH）（x）笼具有不同的形状和尺寸的模板接合氧化还原蚀刻的形状控制的Cu（2）O晶体。在不同的结构水平上可以很容易地调节组成，以产生其他有趣的结构，如Cu（2）O@Fe（2）O（3）和Cu@Fe（3）O（4），以及Fe（2）O（3）和Fe（3）O（4）笼。更值得注意的是，这种策略能够自上而下地设计中空结构的内部，正如双壁纳米塔和纳米盒甚至盒中盒结构的制造所证明的那样。此外，该方法还应用于形成基于Au和MnO（x）的中空结构。
Despite the significant advancement in making hollow structures, one unsolved challenge in the field is how to engineer hollow structures with specific shapes, tunable compositions, and desirable interior structures. In particular, top-down engineering the interiors inside preformed hollow structures is still a daunting task. In this work, we demonstrate a facile approach for the preparation of a variety of uniform hollow structures, including Cu(2)O@Fe(OH)(x) nanorattles and Fe(OH)(x) cages with various shapes and dimensions by template-engaged redox etching of shape-controlled Cu(2)O crystals. The composition can be readily modulated at different structural levels to generate other interesting structures such as Cu(2)O@Fe(2)O(3) and Cu@Fe(3)O(4) rattles, as well as Fe(2)O(3) and Fe(3)O(4) cages. More remarkably, this strategy enables top-down engineering the interiors of hollow structures as demonstrated by the fabrication of double-walled nanorattles and nanoboxes, and even box-in-box structures. In addition, this approach is also applied to form Au and MnO(x) based hollow structures.