Next Article in Journal
Shaping of Aluminum Foam during Foaming of Precursor Using Steel Mesh with Various Opening Ratios
Previous Article in Journal
Increase in the Mechanical Strength of Mg-8Gd-3Y-1Zn Alloy Containing Long-Period Stacking Ordered Phases Using Equal Channel Angular Pressing Processing
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Metals 2019, 9(2), 222; https://doi.org/10.3390/met9020222

Effect of Iron Impurities on Magnetic Properties of Nanosized CeO2 and Ce-Based Compounds

1
CEITEC IPM, Institute of Physics of Materials, AS CR, Zizkova 22, 616 62 Brno, Czech Republic
2
Faculty of the Environment, University of Jan Evangelista Purkyne, Kralova Vysina 7, 400 96 Usti nad Labem, Czech Republic
3
Department of Physics, VSB-Technical University of Ostrava, 17.listopadu 15, 708 33 Ostrava-Poruba, Czech Republic
4
Institute of Physics, University of Silesia in Katowice, Pułku Piechoty 1A, 41-500 Chorzów, Poland
*
Author to whom correspondence should be addressed.
Received: 17 December 2018 / Revised: 1 February 2019 / Accepted: 9 February 2019 / Published: 13 February 2019
(This article belongs to the Special Issue Rare Earth Compounds)
Full-Text   |   PDF [7500 KB, uploaded 13 February 2019]   |  

Abstract

CeO2 samples prepared by three technological procedures from the same cerium source, namely cerium (III) nitrate hexahydrate, are studied from the viewpoint of structure, chemical and phase composition, and micro- and macro-magnetic properties. The scanning and transmission electron microscopies completed by energy-dispersive X-ray (EDX) analysis yield nano-structural natures and homogenous chemical compositions of the ceria samples, confirmed also by X-ray diffraction. The diamagnetic, paramagnetic, and ferromagnetic phases in all samples follow from an analysis of the room- and low-temperature measurements of hysteresis loops. Iron impurities in ppm amounts are clearly detected by 57Fe Mössbauer spectrometry not only in the ceria samples but also in the selected input chemicals used for their preparation. This contributes to the explanation of the magnetic behaviour of nanosized ceria. View Full-Text
Keywords: CeO2; microstructure; magnetic properties; Mössbauer spectrometry CeO2; microstructure; magnetic properties; Mössbauer spectrometry
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Jiraskova, Y.; Bursik, J.; Janos, P.; Lunacek, J.; Chrobak, A.; Zivotsky, O. Effect of Iron Impurities on Magnetic Properties of Nanosized CeO2 and Ce-Based Compounds. Metals 2019, 9, 222.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top