Two-dimensional nanoframes with dual rims

Sungjae Yoo, Jeongwon Kim, Sungwoo Choi, Doojae Park and Sungho Park ()
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Sungjae Yoo: Sungkyunkwan University
Jeongwon Kim: Sungkyunkwan University
Sungwoo Choi: Hallym University
Doojae Park: Hallym University
Sungho Park: Sungkyunkwan University

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract 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.

Date: 2019
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DOI: 10.1038/s41467-019-13738-6

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