Preparation of optical active single-handed helical barium titanate nanotubes and characterization of dielectric properties

被引：2

作者：

Lin, Shu-Wei ^{[1
]}

Qian, Wen-Hu ^{[1
]}

Huo, Hong-Jing ^{[1
]}

Li, Bao-Zong ^{[1
]}

Li, Yi ^{[1
]}

Yang, Yong-Gang ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, State & Local Joint Engn Lab Novel Funct Polymer, Dept Polymer Sci & Engn,Jiangsu Key Lab Adv Funct, Suzhou 215123, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2017年 / 28卷 / 05期

关键词：

Dielectrics; Barium titanate; Optical materials and properties; Templating approach; Nanoparticles; SOL-GEL TRANSCRIPTION; TUBULAR NANORIBBONS; TUBES;

D O I：

10.1016/j.cclet.2016.12.030

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Left and right-handed helical barium titanate nanotubes are prepared with the impregnation of Ba(OH)(2) into single-handed helical titania nanotubes. Wide angle X-ray diffraction pattern and transmission electron microscopy image indicate that they are, constructed by nanoparticles with a partially crystalline structure. The diffuse reflectance circular dichroism spectra indicate that they exhibit optical activity which was proposed to originate from chiral defects on the inner surfaces of the nanotubes. Both the dielectric constant and tans decrease with increasing the frequency. At 10 and 100 Hz, one dielectric constant peak at 9.6 degrees C and one tans peak at 5.0 degrees C are observed at 120 degrees C to 180 degrees C. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：1111 / 1113

页数：3

共 15 条

[1] Kinetics and mechanisms of hydrothermal synthesis of barium titanate [J].