Two-dimensional nanoframes with dual rims.,Nature Communications

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Two-dimensional nanoframes with dual rims.
Nature Communications ( IF 14.7 ) Pub Date : 2019-12-19 , DOI: 10.1038/s41467-019-13738-6
Sungjae Yoo ₁ , Jeongwon Kim ₁ , Sungwoo Choi ₂ , Doojae Park ₂ , Sungho Park ₁

Affiliation

The synthesis of highly complex two-dimensional (2D) metal nanoframes remains a great challenge. Synthetic strategies for preparing 2D metal nanoframes are few, and rational and systematic synthetic pathways to more complicated architectures have not yet been reported. Herein, we demonstrate a stepwise synthetic strategy for complex 2D metal nanoframes with a high degree of intricacy; the strategy leads to a variety of shapes, including rings, triangles, hexagons, and tripods with tailorable single or double frames in a single entity. These nanoframes of high homogeneity could be obtained through selective combination of four different chemical toolkits consisting of selective etching and deposition on certain facets, and concentric and/or eccentric regrowth by controlling the mismatches of lattice constants of metals. The resulting nanoframes were highly homogeneous in size and shape and had van der Waals interactions that maximized rim-to-rim contact, allowing them to uniquely self-assemble into large-area superstructures.

中文翻译：

具有双重边缘的二维纳米框架。

高度复杂的二维（2D）金属纳米框架的合成仍然是一个巨大的挑战。制备2D金属纳米框架的合成策略很少，并且尚未报道针对更复杂架构的合理且系统的合成途径。在本文中，我们展示了具有高度复杂性的复杂2D金属纳米框架的逐步合成策略。该策略产生了多种形状，包括环，三角形，六边形和三脚架，在单个实体中具有可定制的单帧或双帧。这些高均一性的纳米框架可以通过选择性地组合四种不同的化学工具包而获得，这些工具包包括通过控制金属晶格常数的不匹配而选择性刻蚀和沉积在某些面上以及同心和/或偏心长生。

更新日期：2019-12-19

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