Article (Scientific journals)
A study of magnetic and magnetocaloric properties of 0.95 (La0.45Nd0.25Sr0.3MnO3)/0.05CuO composites prepared by spray drying
Fkhar, L.; Mahmoud, Abdelfattah; Boschini, Frédéric et al.
2020In Inorganic Chemistry Communications, 119, p. 108129
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Keywords :
Spray drying; Composite materials; Microspheres morphology; Magnetocaloric effect; Magnetic entropy change
Abstract :
[en] This study presents an investigation of the structural, magnetic and magnetocaloric properties of the 0.95(La0.45Nd0.25)Sr0.3MnO3/0.05CuO polycrystalline composite. The investigated composite materials are elaborated by combining both solid-state reaction and spray-drying method at the pilot-scale aiming to obtain a homogeneous composite material with controlled morphology and regular particles size. The structure, microstructure, magnetism and magnetocaloric features of the synthesized materials are investigated by using several techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM) and Magnetic measurements. The XRD and SEM data confirm the co-existence of perovskite and copper oxide phases. The magnetization data unveil that the studied composite exhibits a ferromagnetic to paramagnetic transition close to room-temperature (TC = 295 K). More importantly, its magnetocaloric effect in terms of the entropy change remains similar to that of (La0.45Nd0.25)Sr0.3MnO3/0.05CuO only synthesized by the conventional solid-state reaction technique. This points out the possibility of upscaling the production of magnetocaloric oxides to industrial levels using the spray-drying technique.
Disciplines :
Chemical engineering
Author, co-author :
Fkhar, L.
Mahmoud, Abdelfattah  ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Boschini, Frédéric ;  Université de Liège - ULiège > Plateforme APTIS
Schrijnemakers, Audrey ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
maalam, K. El
Hamedoun, M.
Benyoussef, A.
Hlil, E. K.
Ali, M. Ait
Balli, M.
Mounkachi, O.
Language :
English
Title :
A study of magnetic and magnetocaloric properties of 0.95 (La0.45Nd0.25Sr0.3MnO3)/0.05CuO composites prepared by spray drying
Publication date :
01 September 2020
Journal title :
Inorganic Chemistry Communications
ISSN :
1387-7003
Publisher :
Elsevier, Netherlands
Volume :
119
Pages :
108129
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 August 2020

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