将声化学制备的SbSI用于电纺纳米纤维。

Using of sonochemically prepared SbSI for electrospun nanofibers.

作者信息

Nowak M, Tański T, Szperlich P, Matysiak W, Kępińska M, Stróż D, Bober Ł, Toroń B

机构信息

Institute of Physics - Center for Science and Education, Silesian University of Technology, Krasińskiego 8 St., 40-019 Katowice, Poland; Center of Nanotechnology, Silesian University of Technology, Konarskiego 18a St., 44-100 Gliwice, Poland.

Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18a St., 44-100 Gliwice, Poland; Center of Nanotechnology, Silesian University of Technology, Konarskiego 18a St., 44-100 Gliwice, Poland.

出版信息

Ultrason Sonochem. 2017 Sep;38:544-552. doi: 10.1016/j.ultsonch.2017.03.042. Epub 2017 Mar 31.

DOI:10.1016/j.ultsonch.2017.03.042

PMID:28633856

Abstract

A novel polymeric, polyacrylonitrile (PAN) nanofibers containing ferroelectric and semiconducting antimony sulfoiodide (SbSI) have been made by electrospinning. SbSI nanowires, used as the filler, have been prepared sonochemically from antimony sulphide (SbS) and antimony tri-iodide (SbI) for the first time. Nanocrystalline SbSI has been fabricated in ethanol under ultrasonic irradiation (20kHz, 565W/cm) at 323K within 2h. The products have been characterized by using techniques such as powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, high-resolution transmission electron microscopy, selected area electron diffraction and optical diffuse reflection as well as transmission spectroscopy. The good quality of the nanocrystals and their dispersion in the nanofiber's volume is important because this material is attractive for nanogenerators due to its ferroelectric and piezoelectric properties. The amplitude of the voltage pulse, generated under shock pressure of 3.0MPa, has reached 180V in the prototype PAN/SbSI piezoelectric nanogenerator. The peak output voltage of about 0.2V was measured in bending/releasing conditions with the deformation frequency of 1Hz.

摘要

通过静电纺丝制备了一种新型的含有铁电和半导体硫碘锑化物（SbSI）的聚合物聚丙烯腈（PAN）纳米纤维。用作填料的SbSI纳米线首次通过声化学方法由硫化锑（SbS）和三碘化锑（SbI）制备。在323K下，于乙醇中在超声辐射（20kHz，565W/cm）下2小时内制备出了纳米晶SbSI。通过粉末X射线衍射、扫描电子显微镜、能量色散X射线分析、高分辨率透射电子显微镜、选区电子衍射、光学漫反射以及透射光谱等技术对产物进行了表征。纳米晶体的良好质量及其在纳米纤维体积中的分散性很重要，因为这种材料因其铁电和压电特性而对纳米发电机具有吸引力。在3.0MPa的冲击压力下产生的电压脉冲幅度在原型PAN/SbSI压电纳米发电机中达到了180V。在弯曲/释放条件下，变形频率为1Hz时，测得的峰值输出电压约为0.2V。