Synthesis and characterization of ultrafine spinel ferrite obtained by precursor combustion technique

被引：22

作者：

Gonsalves, L. R. ^{[3
]}

Mojumdar, S. C. ^{[1
,2
]}

Verenkar, V. M. S. ^{[3
]}

机构：

[1] Univ Guelph, Dept Chem, Guelph, ON N1G 2W1, Canada

[2] Trencin Univ A Dubceck, Fac Ind Technol, Dept Chem Technol & Environm, Puchov, Slovakia

[3] Goa Univ, Dept Chem, Taleigao Plateau 403206, Goa, India

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2012年 / 108卷 / 03期

关键词：

Nanoparticles; Spinel ferrite; Thermal analysis; Autocatalytic decomposition; Fumarato-hydrazinate precursor; MAGNETIC-PROPERTIES; NANOPARTICLES; COMPLEXES; BEHAVIOR; ROUTE; FILMS;

D O I：

10.1007/s10973-012-2392-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Nanoparticles of the spinel ferrite, Co0.6Ni0.4Fe2O4 have been synthesized by the precursor combustion technique. This synthetic route makes use of a novel precursor viz. metal fumarato hydrazinate which decomposes autocatalytically after ignition to yield nanosized spinel ferrite. The X-ray powder diffraction of the "as prepared" oxide confirms the formation of monophasic nanocrystalline cobalt nickel ferrite. The thermal decomposition of the precursor has been studied by isothermal, thermogravimetric and differential thermal analysis. The precursor has also been characterized by FTIR, and chemical analysis and its chemical composition has been fixed as Co0.6Ni0.4Fe2(C4H2O4)(3)center dot 6N(2)H(4). The Curie temperature of the "as prepared" oxide was determined by ac susceptibility measurements.

引用

页码：859 / 863

页数：5

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