Chemical control on the size and properties of nano NiFe2O4 synthesized by sol-gel autocombustion method

被引：78

作者：

Prabhakaran, T. ^{[1
]}

Hemalatha, J. ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Phys, Adv Mat Lab, Tiruchirappalli, Tamil Nadu, India

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 02期

关键词：

Sol-gel Processes; X-ray methods; Magnetic properties; Thermal Properties; Ferrites; NANOCRYSTALLINE NICKEL FERRITE; MAGNETIC-PROPERTIES; COMBUSTION SYNTHESIS; PARTICLE-SIZE; SIMPLE ROUTE; X-RAY; NANOPARTICLES; MOSSBAUER; BEHAVIOR; PHASE;

D O I：

10.1016/j.ceramint.2013.09.103

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nickel ferrite nanoparticles have been synthesized by sol-gel auto combustion route. The significant role played by nitric acid added to the precursor solution in controlling the reaction rate phase purity, crystallinity, crystallite size, thermal and magnetic properties of nanoparticles was explored and reported. Also, the influence of annealing on the properties were studied. Samples of average crystallite size ranging from 10 nm to 40 nm have been obtained by controlling the HNO3 concentration and by increasing the annealing temperature. The size-dependent structural, thermal and magnetic properties were investigated and reported. The Hopkinson peak was observed for all the crystalline samples near the Curie temperature. The highest value 47.3 emu/g of saturation magnetization was obtained for the sample prepared with higher concentration (6 mol/L) of HNO3. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：3315 / 3324

页数：10

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