表面修饰聚锑酸纳米颗粒的合成、微观结构及电物理性能

IF 2.9 Q2 ELECTROCHEMISTRY
Fedor Yaroshenko, Yulia Lupitskaya, Maxim Ulyanov, Vladimir Burmistrov, Elena Filonenko, Damir Galimov, Danil Uchaev, Ekaterina Rubtsova
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引用次数: 0

摘要

本文考虑了目前关于酸性纳米分散无机改性剂表面改性机理的观点,这些改性剂对聚合物质子导电电解质的水合物和输运性能有显著影响。作者提出了一种替代方法,包括合成具有高离子电导率的新型复合纳米体系,并开发了一种以氧化硅修饰的无机质子导体(聚锑酸)为基础的“核-壳”结构复合材料的方法。利用透射电子显微镜研究了合成的纳米颗粒的表面形貌,并确定了纳米颗粒的尺寸。给出了电阻抗的频率依赖性数据,并分析了电阻抗和电导率的有功和无功分量在100 Hz ~ 1 MHz频率范围内的行为。提出了一种模拟基于PAA和SiO2的“核壳”结构复合材料阻抗色散的等效电路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis, microstructure, and electrophysical properties of surface-modified polyantimonic acid nanoparticles
This work has considered the modern ideas on the mechanism of surface modification for used nanodispersed inorganic modifiers with an acidic surface, which significantly affect the hydrate and transport properties of polymeric proton-conducting electrolytes. Authors have proposed an alternative approach consisting of the synthesis of new composite nanoscale systems characterized by high ionic conductivity and developed a method for obtaining composite materials with "core-shell" structure based on an inorganic proton conductor (polyantimonic acid) modified with silicon oxide. The surface morphology of the synthesized nanoparticles has been studied by transmission electron microscopy, and their sizes have been determined. The data on frequency dependence of the electrical impedance are presented and the behavior of the active and reactive components of the impedance and conductivity in the frequency range from 100 Hz to 1 MHz has been analyzed. An equivalent electrical circuit simulating the impedance dispersion for obtained composites with "core-shell" structure based on PAA and SiO2 has been proposed.
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来源期刊
CiteScore
3.60
自引率
27.30%
发文量
90
审稿时长
6 weeks
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