Self-assembly and selected area growth of zinc oxide nanorods on any surface promoted by an aluminum precoat
Self-assembly and selected area growth of zinc oxide nanorods on any surface promoted by an aluminum precoat
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DOI：
10.1021/jp049134f
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发表时间：
2004-07
影响因子：
3.3
通讯作者：
Y. W. Koh;Ming Lin;C. K. Tan;Y. Foo;K. Loh
中科院分区：
文献类型：
--
作者：
Y. W. Koh;Ming Lin;C. K. Tan;Y. Foo;K. Loh
我们展示了一种简单的方法，通过在基底上预涂一层铝 (Al) 薄膜，在水热合成中引导 ZnO 纳米棒在平面和曲面上自组装。 Al在碱性水热环境中转化为类水滑石碳酸锌铝片，为ZnO纳米棒的自组装提供了晶格匹配的基底。利用水热合成技术，证明了 ZnO 纳米棒在 Al 图案基底上的选择性生长以及 ZnO 纳米棒沿切向和径向壁对碳纳米管的高密度涂层。还讨论了 ZnO 和类水滑石碳酸锌铝片生长中涉及的界面化学。
We demonstrate a simple method to direct the self-assembly of ZnO nanorods on flat and curved surfaces in hydrothermal synthesis by precoating the substrate with a thin film of aluminum (Al). The Al was transformed in the alkali hydrothermal environment into hydrotalcite-like zinc aluminum carbonate sheets, which provide a lattice-matched substrate for the self-assembly of ZnO nanorods. Selective growth of ZnO nanorods on the Al-patterned substrate as well as the high-density coating of carbon nanotubes by ZnO nanorods along the tangential and radial walls has been demonstrated using hydrothermal synthesis. The interfacial chemistry involved in the growth of ZnO and hydrotalcite-like zinc aluminum carbonate sheets is also discussed.