School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
Nano Lett. 2012 Feb 8;12(2):827-32. doi: 10.1021/nl203880z. Epub 2012 Jan 31.
We demonstrate new molecular-level concepts for constructing nanoscopic metal oxide objects. First, the diameters of metal oxide nanotubes are shaped with angstrom-level precision by controlling the shape of nanometer-scale precursors. Second, we measure (at the molecular level) the subtle relationships between precursor shape and structure and final nanotube curvature. Anionic ligands are used to exert fine control over precursor shapes, allowing assembly into nanotubes whose diameters relate directly to the curvatures of the 'shaped' precursors.
我们展示了构建纳米级金属氧化物物体的新分子水平概念。首先，通过控制纳米级前体的形状，以埃精度塑造了金属氧化物纳米管的直径。其次，我们测量（在分子水平上）了前体形状和结构与最终纳米管曲率之间的细微关系。阴离子配体用于对前体形状进行精细控制，从而可以组装成直径与“成型”前体曲率直接相关的纳米管。
