Yanagishita Takashi, Takai Hideaki, Kondo Toshiaki, Masuda Hideki
Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji, Tokyo 192-0397, Japan.
Department of Mechanical System Engineering, Aichi University of Technology, 50-2 Manori, Nishihasama-cho, Gamagori, Aichi 443-0047, Japan.
Nanotechnology. 2021 Apr 2;32(14):145603. doi: 10.1088/1361-6528/abd50a.
SnO nanofibers with uniform diameters were obtained by wet spinning using ordered anodic porous alumina as a spinneret, followed by heat treatment. Ordered alumina through-hole membrane is a suitable spinneret material for nanofiber spinning owing to its nanohole array structure with uniform-sizes holes. A polymer solution containing a Sn salt was used as a precursor solution for the wet spinning. Polymer nanofibers containing the Sn salt were continuously formed as the precursor passed through the alumina holes into a coagulating solution. Monodisperse nanofiber structures were successfully maintained, even after heat treatment at 600 °C. This process enabled the preparation of monodisperse SnO nanofibers with diameters below 100 nm, as well as the precise control of fiber diameter by changing the hole size of the porous alumina spinneret. The obtained SnO nanofibers will be useful in various functional devices.
通过以有序阳极多孔氧化铝为喷丝板进行湿纺，随后进行热处理，获得了直径均匀的SnO纳米纤维。有序氧化铝通孔膜由于其具有尺寸均匀的纳米孔阵列结构，是用于纳米纤维纺丝的合适喷丝板材料。含有Sn盐的聚合物溶液用作湿纺的前驱体溶液。当前驱体通过氧化铝孔进入凝固液时，连续形成含有Sn盐的聚合物纳米纤维。即使在600℃热处理后，也成功保持了单分散纳米纤维结构。该工艺能够制备直径低于100nm的单分散SnO纳米纤维，以及通过改变多孔氧化铝喷丝板的孔径来精确控制纤维直径。所获得的SnO纳米纤维将在各种功能器件中有用。
