Effect of annealing on particle size, microstructure and gas sensing properties of Mn substituted CoFe2O4 nanoparticles

被引：35
作者：
Kumar, E. Ranjith [1 ]
Kamzin, A. S. [2 ]
Janani, K. [3 ]
机构：
[1] Dr NGP Inst Technol, Dept Phys, Coimbatore 641048, Tamil Nadu, India
[2] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[3] Kongunadu Arts & Sci Coll, Dept Phys, Coimbatore, Tamil Nadu, India
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 417卷
关键词：
Magnetic materials; Chemical synthesis; X-ray techniques; Gas sensors; COBALT FERRITE PARTICLES; NI-ZN FERRITES; MAGNETIC-PROPERTIES; DIELECTRIC-PROPERTIES; CATION DISTRIBUTION; SPINEL FERRITE; MOSSBAUER; PHASE; XRD; CO;
D O I：
10.1016/j.jmmm.2016.05.072
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Microstructure, morphological and gas sensor studies of Mn substituted cobalt ferrite nanoparticles synthesized by a simple evaporation method and auto- combustion method. The influence of heat treatment on phase and particle size of spinel ferrite nanoparticles were determined by X-ray diffraction and Mossbauer spectroscopy. The XRD study reveals that the lattice constant and crystallite size of the samples increases with the increase of annealing temperature. Last one was confirmed by Mossbauer data. The lowest size of particles of MnCoFe2O4 (similar to 3 nm) is obtained by auto combustion method. The spherical shaped nanoparticles are recorded by TEM. Furthermore, conductance response of Mn-Co ferrite nanomaterial was measured by exposing the material to reducing gas like liquefied petroleum gas (LPG) which showed a sensor response of similar to 0.19 at an optimum operating temperature of 250 degrees C. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：122 / 129
页数：8
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