Synthesis, characterization and electrical properties of Li2NiFe2O4/NiFe2O4 nanocomposites

被引：10

作者：

Balamurugan, S. ^{[1
]}

Manimekalai, S. ^{[1
]}

Prakash, I. ^{[1
]}

机构：

[1] SASTRA Univ, Sch Elect & Elect Engn, Multifunct Mat & Devices Lab, Thanjavur 613401, Tamil Nadu, India

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2017年 / 28卷 / 24期

关键词：

MAGNETIC-PROPERTIES; FERRITE NANOPARTICLES; FINE PARTICLES; NIFE2O4; PERFORMANCE; MICROSTRUCTURE; OXIDE;

D O I：

10.1007/s10854-017-7810-9

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

NiFe2O4 and Li2NiFe2O4/NiFe2O4 nanocomposite samples are prepared using citric acid and urea assisted combustion process. The prepared pristine and nanocomposite samples are characterized by using powder X-ray diffraction, Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy techniques. The effect of Li2NiFe2O4 on the Li2NiFe2O4/NiFe2O4 crystallite size and associated strain is calculated using Williamson-Hall plot. The effect of Li2NiFe2O4 on the electrical and dielectric properties of the composite samples are analyzed using AC-impedance spectroscopy. The prepared composite materials exhibit mixed electrical conduction behavior, and the conduction is due to lithium ion migration as well as electron hopping between Fe2+ and Fe3+ ions in the spinel structure. The conductivity gradually increases and attains maximum upon lithium ion inclusion in the composite. The further increment of lithium ion doping decreases the conductivity.

引用

页码：18610 / 18619

页数：10

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