Magnetic and Humidity-Sensing Properties of Nanostructured CuxCo1-xFe2O4 Synthesized via Autocombustion

Title
Magnetic and Humidity-Sensing Properties of Nanostructured CuxCo1-xFe2O4 Synthesized via Autocombustion
Authors
S. MuthuraniM. Balaji가우탐채근화송종한D. P. PadiyanK. Asokan
Keywords
X-Ray Diffraction; Nanomaterial; Magnetic properties; Sensors; Hysteresis
Issue Date
2011-07
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 11, NO 7, 5850-5855
Abstract
The magnetic nanomaterials of CuxCo1−xFe2O4 (x = 0.0, 0.5, and 1.0) were synthesized via autocombustion. The crystallite sizes of these materials were calculated from their X-ray diffraction peaks and were found to be within the range of 23-43 nm. The band near 575 cm−1 that was observed in the Fourier transform infrared spectrum of these samples confirmed the presence of the ferrite phase. The conductivity versus temperature graph shows thermal hysteresis and exhibits the knee points at 475, 525, and 500 °C for copper ferrite, cobalt ferrite, and copper-cobalt ferrite, respectively. The M-H loops for these materials were traced using a vibrating sample magnetometer, and they indicated a significant increase in intrinsic coercivity due to the addition of Co2+ ions in the copper ferrite, while the remanence and saturation magnetization decreased. The ferrite materials that were used in this study exhibited good humidity sensitivity, but copper ferrite showed higher sensitivity compared to the other two materials.
URI
http://pubs.kist.re.kr/handle/201004/40798
ISSN
1533-4880
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE