Modified Sodium niobate-based 0.76(NaNbO3)-0.24(Sr0.55La0.3TiO3) ceramics for energy storage

Simple item page
dc.contributor.authorEmmanuel, Marwa
dc.date.accessioned2024-08-17T11:13:46Z
dc.date.available2024-08-17T11:13:46Z
dc.date.issued2023
dc.descriptionAbstract. Full-text available at https://doi.org/10.1016/j.matchemphys.2023.127983
dc.description.abstractBecause of their fast discharge speed and excellent fatigue resistance, dielectric ceramics are highly sought after for electronic systems. However, the low energy density caused by the low breakdown electric field leads to poor volumetric efficiency, which is the main challenge for dielectric ceramics in practical applications. Through a ramp-soak-spike (RSS) strategy, we propose a system based on lead-free materials (Sodium niobate precursors) with an enhanced breakdown electric field, resulting in an exquisite energy storage density within perovskite NaNbO3-based ceramics. The current study developed a superior 0.76(NaNbO3)-0.24(Sr0.55La0.3TiO3) ceramics system, abbreviated ME-RSS, for ramp-soak-spike sintering with a high recoverable energy density (Wrec) of 5.8 J cm−3, an efficiency (η) of 85% and high breakdown strength of approximately 440 kVcm−1. Despite these remarkable properties, the system can withstand a high number of cycles as well as a high charge-discharge speed. The current study proposes NaNbO3-based ceramics designed via a RSS sintering route through doping to improve dielectric ceramic breakdown strength, which is expected to benefit a wide range of dielectric ceramic applications requiring high breakdown strength, such as high-voltage capacitors and electrocaloric solid-state cooling devices.
dc.identifier.citationEmmanuel, M. (2023). Modified Sodium niobate-based 0.76 (NaNbO3)-0.24 (Sr0. 55La0. 3TiO3) ceramics for energy storage. Materials Chemistry and Physics, 305, 127983.
dc.identifier.doi10.1016/j.matchemphys.2023.127983
dc.identifier.otherDOI: 10.1016/j.matchemphys.2023.127983
dc.identifier.urihttps://repository.udom.ac.tz/handle/20.500.12661/4694
dc.language.isoen
dc.publisherElsevier BV
dc.relation.ispartofMaterials Chemistry and Physics
dc.subjectDielectric ceramics
dc.subjectFast discharge speed
dc.subjectFatigue resistance
dc.subjectEnergy density
dc.subjectBreakdown electric field
dc.subjectVolumetric efficiency
dc.subjectRamp-soak-spike (RSS) strategy
dc.subjectLead-free materials
dc.subjectSodium niobate precursors
dc.subjectPerovskite NaNbO3
dc.subjectEnergy storage density
dc.subjectME-RSS ceramics
dc.subjectRecoverable energy density
dc.subjectEfficiency
dc.subjectBreakdown strength
dc.subjectCharge-discharge speed
dc.subjectDoping
dc.subjectHigh-voltage capacitors
dc.subjectElectrocaloric cooling devices.
dc.titleModified Sodium niobate-based 0.76(NaNbO3)-0.24(Sr0.55La0.3TiO3) ceramics for energy storage
dc.typeArticle
oaire.citation.volume305
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Marwa Emmanuel,,,, Modified Sodium niobate-based .pdf
Size:
68.89 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles