Lab of Organic Optoelectronics and Molecular Engineering Department of Chemistry, Tsinghua University , Beijing, 100084, China.
Institute for New Energy Materials and Low-Carbon Technologies, Tianjin University of Technology , Tianjin, 300384, China.
J Am Chem Soc. 2017 Jun 28;139(25):8579-8585. doi: 10.1021/jacs.7b03175. Epub 2017 Jun 19.
Polymers possess special dimension-dependent processing flexibility which is always absent in inorganic materials. Traditional inorganic nanowires own similar dimensions to polymers, but usually lack near-molecular diameters and the related properties. Here we report that inorganic nanowires with sub1 nm diameter and microscale length can be electrospinningly processed into superstructures including smooth fibers and large-area mat by tuning the viscosity and surface tension of the colloidal nanowires solution. These superstructures have shown both flexible texture and excellent mechanical properties (712.5 MPa for tensile strength, 10.3 GPa for elastic modulus) while retaining properties arising from inorganic components.
聚合物具有特殊的维度相关的加工灵活性，这在无机材料中是不存在的。传统的无机纳米线与聚合物具有相似的尺寸，但通常缺乏近分子直径和相关的性质。在这里，我们报告说，通过调节胶体纳米线溶液的粘度和表面张力，直径小于 1nm 且具有微尺度长度的无机纳米线可以被电纺加工成包括光滑纤维和大面积垫在内的超结构。这些超结构不仅具有柔韧性和良好的机械性能（拉伸强度为 712.5MPa，弹性模量为 10.3GPa），同时还保留了无机成分的特性。
