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一种非结晶化方法,以实现统一的二维"纳米硬币"和它们的三维超结构

Zhiwei Lin¹, Jian Sun¹, Yangbin Zhou¹

¹Department of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron , Akron, Ohio 44325, United States.

Journal of the American Chemical Society

|April 8, 2017

概括

研究人员开发了一种新的非结晶方法, 这种方法可以精确控制这些纳米结构的尺寸和厚度.

科学领域:

材料科学
超分子化学
纳米技术

背景情况:

两维 (2D) 圆形纳米结构,称为"纳米硬币",自然存在于植物质体中.
这些具有特定尺寸和厚度的2D纳米硬币的受控制造在材料科学中是一个重大挑战.

研究的目的:

引入一种新的非结晶组装方法来制造二维纳米硬币.
为了证明对这些纳米硬币的大小和厚度的控制.
探索pH对不同层次纳米结构的形成的影响.

主要方法:

用于自组装成超分子结构的巨型表面活性剂.
使用非结晶化策略,与需要特定晶体对称性的传统方法区分开来.
操纵表面活性剂尾巴的分子长度以调整纳米硬币尺寸.
调整选择性溶剂的pH值以控制2D纳米硬币或3D圆柱形超结构的形成.

主要成果:

通过非结晶途径成功制造2D纳米硬币.
通过改变巨型表面活性剂尾巴的分子长度来证明纳米硬币的直径和厚度是可调节的.
展示了对组件的pH依赖控制,产生2D纳米硬币或3D圆柱状合体超结构.

结论:

巨型表面活性剂的非结晶组合提供了一个有效的生产2D纳米硬币的途径.
这种方法可以精确控制组装的纳米结构的形状,尺寸和尺寸分布.
该战略为设计和制造具有定制性质的等级纳米结构开辟了新的可能性.

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