Synthesis, structural and magnetic properties of copper substituted nickel manganite

被引：14

作者：

Hankare, P. P. ^{[1
]}

Pandav, R. S. ^{[1
]}

Patil, R. P. ^{[1
]}

Vader, V. T. ^{[2
]}

Garadkar, K. M. ^{[1
]}

机构：

[1] Shivaji Univ, Dept Chem, Kolhapur 416004, Maharashtra, India

[2] Walchand Coll Arts & Sci, Solapur 413006, MH, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 544卷

关键词：

Sol-gel synthesis; XRD; TG-DTA; SEM; EDAX; TEM; VSM; FERRITE; DECOMPOSITION; SIZE; CU;

D O I：

10.1016/j.jallcom.2012.07.041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The nanocrystalline Ni1-xCuxMn2O4 (x = 0, 0.25, 0.5, 0.75 and 1) manganites were synthesized by sol-gel autocombustion method. X-ray diffraction technique confirmed the formation of single phase cubic spinet structure for all the compositions studied. Lattice parameter values show a decreasing trend with an increase in Cu content. Thermal analysis of the precursor after autocombustion was carried out using TG-DTA technique. Formation of spherical nanoparticles was revealed by scanning electron microscopy (SEM). The elemental analysis as obtained by EDAX is in close agreement with the expected composition from the stoichiometry of reactant solutions used. The nano-sized grain structure formation was confirmed by transmission electron microscopy (TEM). The magnetic data indicates that, all the compositions are ferrimagnetic in nature. The detailed results of XRD, thermal analysis, SEM, EDAX, TEM, electrical and magnetic properties indicating the role of substitution of copper ions on the structural, electrical and magnetic properties of nickel manganite are presented. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：197 / 202

页数：6

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