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The paradigm of the filler's dielectric permittivity and aspect ratio in high- k polymer nanocomposites for energy storage applications

hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorHANANI, Zouhair
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
hal.structure.identifierLaboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
dc.contributor.authorMEZZANE, Daoud
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
dc.contributor.authorAMJOUD, M’barek
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
dc.contributor.authorLAHCINI, Mohammed
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorSPREITZER, Matjaž
hal.structure.identifierJozef Stefan Institute [Ljubljana] [IJS]
dc.contributor.authorVENGUST, Damjan
hal.structure.identifierLaboratoire des Matériaux Innovants, Energie et Développement Durable [Marrakech] [IMED-Lab]
dc.contributor.authorJAMALI, Arash
hal.structure.identifierLaboratoire de Physique de la Matière Condensée - UR UPJV 2081 [LPMC]
dc.contributor.authorEL MARSSI, Mimoun
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.issued2022
dc.identifier.issn2050-7526
dc.description.abstractEnCeramic/polymer nanocomposites are promising materials for energy storage applications. The most common approach to optimize energy storage properties relies on combining a ceramic and a polymer having the highest possible dielectric permittivity and breakdown strength, respectively. It is also known that another significant factor is the aspect ratio of nanofillers where a higher aspect ratio gives rise to a higher effective dielectric permittivity of the composite. There is thus a duality between the dielectric permittivity of the ceramic and its aspect ratio that we propose to study in this paper. To achieve this, high-k nanocomposites were designed based on biodegradable polymer matrix polylactic acid (PLA) and different inorganic nanofillers having different shapes (spherical, rod and wire) and dielectric properties. The effects of the aspect ratio, core–shell structure, dielectric permittivity and volume fraction of the nanofillers on the dielectric and energy storage performances of PLA-based nanocomposites were assessed. An enhanced energy storage density and recovered energy density of 3.63 and 1.80 J cm−3, respectively, were obtained in nanocomposites based on rod-like fillers. We discussed, from a theoretical model, that, below the percolation threshold, the obtained properties resulted from a compromise between both the dielectric permittivity and the aspect ratio of the ceramic. This investigation provides an exciting opportunity to advance our knowledge of ceramic/polymer nanocomposites for energy storage applications.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.title.enThe paradigm of the filler's dielectric permittivity and aspect ratio in high- k polymer nanocomposites for energy storage applications
dc.typeArticle de revue
dc.identifier.doi10.1039/D2TC00251E
dc.subject.halChimie/Polymères
bordeaux.journalJournal of Materials Chemistry C
bordeaux.page10823-10831
bordeaux.volume10
bordeaux.issue30
bordeaux.peerReviewedoui
hal.identifierhal-03764201
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03764201v1
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