聚苯胺/钴铁氧体电磁复合材料的制备及其性能

doi:10.16085/j.issn.1000-6613.2015.09.026

化工进展 ›› 2015, Vol. 34 ›› Issue (09): 3374-3378.DOI: 10.16085/j.issn.1000-6613.2015.09.026

聚苯胺/钴铁氧体电磁复合材料的制备及其性能

冯辉霞¹, 王果¹, 陈姣¹, 谭琳¹, 陈娜丽¹, 邱建辉², 陈柏屹²

1. 兰州理工大学石油化工学院, 甘肃兰州 730050;
2. 日本秋田县立大学, 日本秋田 015-0055

收稿日期:2014-12-08 修回日期:2015-03-12 出版日期:2015-09-05 发布日期:2015-09-05
通讯作者: 冯辉霞(1966-)女,博士,教授,博士生导师,主要研究方向为化学功能材料、绿色化学。E-mail:fenghx@lut.cn
作者简介:冯辉霞(1966-)女,博士,教授,博士生导师,主要研究方向为化学功能材料、绿色化学。E-mail:fenghx@lut.cn
基金资助:
基金项目:国家自然科学基金(51063003)、国家科技部“科技人员服务企业行动项目”(2009GJG10041)及甘肃省自然科学基金(ZS021-A25-028-C、3ZS062-B25-027、3ZS-042-B25-008、0809DJZA011)项目。

Magnetic and electrical properties of polyaniline/CoFe₂O₄ nanocomposites

FENG Huixia¹, WANG Guo¹, CHEN Jiao¹, TAN Lin¹, CHEN Nali¹, QIU Jianhui², CHEN Baiyi²

1. School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China;
2. Department of Machine Intelligence and Systems Engineering, Faculty of Systems Engineering, Akita Prefectural University, Akita 015-0055, Japan

Received:2014-12-08 Revised:2015-03-12 Online:2015-09-05 Published:2015-09-05

摘要/Abstract

摘要： 先采用反向共沉淀法制备了钴铁氧体(CoFe₂O₄)磁性纳米颗粒,并以此为核,基于离子液体(IL)环境下,以苯胺为单体,运用原位聚合和化学氧化聚合法制备得到了既具有电性能又具有磁性能的钴铁氧体/酸掺杂聚苯胺--PANI/CoFe₂O₄(IL)复合材料。通过透射电镜(TEM)、X射线衍射分析(XRD)、红外波谱分析(FT-IR)、振动样品磁强计(VSM)和四探针电导率仪等测试手段研究了该复合材料的结构和性质,结果表明:本文实验条件下,制备得到的CoFe₂O₄具有单一的尖晶石型铁氧体结构,且分散性较好,IL存在的反应条件对其晶型没有影响;含相同量钴铁氧体(0.3g CoFe₂O₄)时,在IL和水相中制备的PANI/CoFe₂O₄复合材料的电导率分别为1.0S/cm和0.4S/cm,而饱和磁强度则分别为19.8emu/g和22.9emu/g。此外,IL下得到的复合材料表现出较好的电包磁结构。

关键词: 反向共沉淀法, 聚苯胺, 钴铁氧体, 合成, 复合材料, 离子液体

Abstract: Cobalt ferrite magnetic nanoparticles was prepared using a reverse coprecipitation method in this paper. Then polyaniline/CoFe₂O₄ electromagnetic nanocomposites were successfully synthesized using 1-methyl-3-alkylcarboxylic acid imidazolium ionic liquids as synthetic environment by in situ polymerization and chemical oxidative polymerization of aniline molecule on CoFe₂O₄ nanoparticles. The properties and structures of the composites were characterized by using transmission electron microscopy (TEM),X-ray diffraction (XRD),Fourier transform infrared (FT-IR),vibrating sample magnetometer (VSM) and four-point probe resistivity instrument. The results showed that obtained cobalt ferrite nano-particles have a cubic spinel ferrite type structure and were dispersed uniformly. The ionic liquids have no influence on the formation of the spinel type lattice. When the same amount of CoFe₂O₄ (0.3g) was added,the conductivity of PANI/CoFe₂O₄ composites prepared in IL and water were 1.0S/cm and 0.4S/cm,and the saturated magnetizations were 19.8emu/g and 22.9emu/g,respectively. Besides,the composites performed a good structure of magnetic nanoparticles coated by conductive PANI when it was prepared in IL.

Key words: reverse coprecipitation, polyaniline, cobalt ferrite, synthesis, composites, ionic liquids

中图分类号:

O646

冯辉霞, 王果, 陈姣, 谭琳, 陈娜丽, 邱建辉, 陈柏屹. 聚苯胺/钴铁氧体电磁复合材料的制备及其性能[J]. 化工进展, 2015, 34(09): 3374-3378.

FENG Huixia, WANG Guo, CHEN Jiao, TAN Lin, CHEN Nali, QIU Jianhui, CHEN Baiyi. Magnetic and electrical properties of polyaniline/CoFe₂O₄ nanocomposites[J]. Chemical Industry and Engineering Progree, 2015, 34(09): 3374-3378.

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聚苯胺/钴铁氧体电磁复合材料的制备及其性能

Magnetic and electrical properties of polyaniline/CoFe₂O₄ nanocomposites

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聚苯胺/钴铁氧体电磁复合材料的制备及其性能

Magnetic and electrical properties of polyaniline/CoFe2O4 nanocomposites

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Magnetic and electrical properties of polyaniline/CoFe₂O₄ nanocomposites