Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026 (P. R. China) http://staff.ustc.edu.cn/∼yulab/
Angew Chem Int Ed Engl. 2014 Apr 25;53(18):4561-6. doi: 10.1002/anie.201400457. Epub 2014 Mar 28.
As macroscopic three dimensional (3D) architectures show increasing significance, much effort has been devoted to the hierarchical organization of 1D nanomaterials into serviceable macroscopic 3D assemblies. How to assemble 1D nanoscale building blocks into 3D hierarchical architectures is still a challenge. Herein we report a general strategy based on the use of ice as a template for assembling 1D nanostructures with high efficiency and good controllability. Free-standing macroscopic 3D Ag nanowire (AgNW) assemblies with hierarchical binary-network architectures are then fabricated from a 1D AgNW suspension for the first time. The microstructure of this 3D AgNW network endows it with electrical conductivity and allows it to be made into stretchable and foldable conductors with high electromechanical stability. These properties should make this kind of macroscopic 3D AgNW architecture and it composites suitable for electronic applications.
随着宏观三维（3D）结构的重要性日益凸显，人们已经投入大量精力来实现一维纳米材料的分级组织，以构建具有实用价值的宏观 3D 组装体。如何将一维纳米尺度的构建块组装成 3D 分级结构仍然是一个挑战。在此，我们报告了一种通用策略，该策略基于使用冰作为模板，能够高效且可控地组装一维纳米结构。首次通过 1D AgNW 悬浮液制备了具有分级双网络结构的独立式宏观 3D Ag 纳米线（AgNW）组装体。这种 3D AgNW 网络的微观结构使其具有导电性，并使其能够制成具有高机电稳定性的可拉伸和可折叠导体。这些特性使得这种宏观 3D AgNW 结构及其复合材料适用于电子应用。
