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Thermally-stable high energy storage performances and large electrocaloric effect over a broad temperature span in lead-free BCZT ceramic

hal.structure.identifierUniversité Cadi Ayyad [Marrakech] [UCA]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorHANANI, Zouhair
hal.structure.identifierUniversité Cadi Ayyad [Marrakech] [UCA]
dc.contributor.authorMERSELMIZ, Soukaina
hal.structure.identifierUniversité Cadi Ayyad [Marrakech] [UCA]
dc.contributor.authorMEZZANE, Daoud
hal.structure.identifierUniversité Cadi Ayyad [Marrakech] [UCA]
dc.contributor.authorAMJOUD, M'Barek
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorBRADEŠKO, Andraž
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorROŽIČ, Brigita
hal.structure.identifierUniversité Cadi Ayyad [Marrakech] [UCA]
hal.structure.identifierUniversité Mohammed VI Polytechnique [Ben Guerir] [UM6P]
dc.contributor.authorLAHCINI, Mohammed
hal.structure.identifierLaboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
dc.contributor.authorEL MARSSI, Mimoun
hal.structure.identifierI.N. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine [IPMS]
dc.contributor.authorRAGULYA, Andrey
hal.structure.identifierLaboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
hal.structure.identifierPhysics Faculty
dc.contributor.authorLUK'YANCHUK, Igor A.
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorKUTNJAK, Zdravko
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGOUNÉ, Mohamed
dc.date.issued2020-08-20
dc.description.abstractEnBa0.85Ca0.15Zr0.10Ti0.90O3 (BCZT) relaxor ferroelectric ceramics exhibit enhanced energy storage and electrocaloric performances due to their excellent dielectric and ferroelectric properties. In this study, the temperature-dependence of the structural and dielectric properties, as well as the field and temperature-dependence of the energy storage and the electrocaloric properties in BCZT ceramics elaborated at low-temperature hydrothermal processing are investigated. X-ray diffraction and Raman spectroscopy results confirmed the ferroelectric–paraelectric phase transition in the BCZT ceramic. At room temperature and 1 kHz, the dielectric constant and dielectric loss reached 5000 and 0.029, respectively. The BCZT ceramic showed a large recovered energy density (Wrec) of 414.1 mJ cm−3 at 380 K, with an energy efficiency of 78.6%, and high thermal-stability of Wrec of 3.9% in the temperature range of 340–400 K. The electrocaloric effect in BCZT was explored via an indirect approach following the Maxwell relation at 60 kV cm−1. The significant electrocaloric temperature change of 1.479 K at 367 K, a broad temperature span of 87 K, an enhanced refrigerant capacity of 140.33 J kg−1, and a high coefficient of performance of 6.12 obtained at 60 kV cm−1 make BCZT ceramics potentially useful coolant materials in the development of future eco-friendly solid-state refrigeration technology.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.title.enThermally-stable high energy storage performances and large electrocaloric effect over a broad temperature span in lead-free BCZT ceramic
dc.typeArticle de revue
dc.identifier.doi10.1039/D0RA06116F
dc.subject.halChimie/Matériaux
bordeaux.journalRSC Advances
bordeaux.page30746-30755
bordeaux.volume10
bordeaux.issue51
bordeaux.peerReviewedoui
hal.identifierhal-02981577
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02981577v1
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