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Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic

Ceramic dielectric capacitors have attracted increasing interest due to their wide applications in pulsed power electronic systems. Nevertheless, synchronously achieving the high energy storage density, high energy storage efficiency and good thermal stability in dielectric ceramics is still a great...

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Autores principales: Feng, Wenbin, Cheng, Lilin, Hua, Xiu-Ni, Chen, Xin, Zhang, Hui, Duan, Haibao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693756/
https://www.ncbi.nlm.nih.gov/pubmed/36505698
http://dx.doi.org/10.1039/d2ra05403e
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author Feng, Wenbin
Cheng, Lilin
Hua, Xiu-Ni
Chen, Xin
Zhang, Hui
Duan, Haibao
author_facet Feng, Wenbin
Cheng, Lilin
Hua, Xiu-Ni
Chen, Xin
Zhang, Hui
Duan, Haibao
author_sort Feng, Wenbin
collection PubMed
description Ceramic dielectric capacitors have attracted increasing interest due to their wide applications in pulsed power electronic systems. Nevertheless, synchronously achieving the high energy storage density, high energy storage efficiency and good thermal stability in dielectric ceramics is still a great challenge. Herein, lead free Sr(3)SmNa(2)Fe(0.5)Nb(9.5)O(30) (SSNFN) ceramic with tetragonal tungsten bronze structure was synthesized and characterized, high total energy storage density (2.1 J cm(−3)), recoverable energy storage density (1.7 J cm(−3)), energy storage efficiency (80%) and good thermal stability are obtained simultaneously in the compound, due to the contribution of high maximum polarization (P(max)), low remanent polarization (P(r)) and large breakdown strength (E(b)). The high P(max) is related with the intrinsic characteristic of Sr(4)Na(2)Nb(10)O(30) (SNN) based system, while the small P(r) and good thermal stability stem from the significantly enhanced relaxor behavior. In addition, the large E(b) originates from the improved microstructure with fewer defects and decreased average grain size, and the reduction of electrical heterogeneity compared with SNN. The capacitive performance obtained in this work points out the great potential of tungsten bronze ceramic designed for energy storage applications and pave a feasible way to develop novel lead-free dielectric capacitors.
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spelling pubmed-96937562022-12-08 Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic Feng, Wenbin Cheng, Lilin Hua, Xiu-Ni Chen, Xin Zhang, Hui Duan, Haibao RSC Adv Chemistry Ceramic dielectric capacitors have attracted increasing interest due to their wide applications in pulsed power electronic systems. Nevertheless, synchronously achieving the high energy storage density, high energy storage efficiency and good thermal stability in dielectric ceramics is still a great challenge. Herein, lead free Sr(3)SmNa(2)Fe(0.5)Nb(9.5)O(30) (SSNFN) ceramic with tetragonal tungsten bronze structure was synthesized and characterized, high total energy storage density (2.1 J cm(−3)), recoverable energy storage density (1.7 J cm(−3)), energy storage efficiency (80%) and good thermal stability are obtained simultaneously in the compound, due to the contribution of high maximum polarization (P(max)), low remanent polarization (P(r)) and large breakdown strength (E(b)). The high P(max) is related with the intrinsic characteristic of Sr(4)Na(2)Nb(10)O(30) (SNN) based system, while the small P(r) and good thermal stability stem from the significantly enhanced relaxor behavior. In addition, the large E(b) originates from the improved microstructure with fewer defects and decreased average grain size, and the reduction of electrical heterogeneity compared with SNN. The capacitive performance obtained in this work points out the great potential of tungsten bronze ceramic designed for energy storage applications and pave a feasible way to develop novel lead-free dielectric capacitors. The Royal Society of Chemistry 2022-11-25 /pmc/articles/PMC9693756/ /pubmed/36505698 http://dx.doi.org/10.1039/d2ra05403e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Feng, Wenbin
Cheng, Lilin
Hua, Xiu-Ni
Chen, Xin
Zhang, Hui
Duan, Haibao
Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic
title Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic
title_full Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic
title_fullStr Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic
title_full_unstemmed Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic
title_short Dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic
title_sort dielectric property and energy storage performance enhancement for iron niobium based tungsten bronze ceramic
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693756/
https://www.ncbi.nlm.nih.gov/pubmed/36505698
http://dx.doi.org/10.1039/d2ra05403e
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