{"title":"A/B 位共修饰铌酸银弛豫反铁电体陶瓷的超高储能密度和效率","authors":"","doi":"10.1016/j.jmat.2024.03.014","DOIUrl":null,"url":null,"abstract":"<div><p>AgNbO<sub>3</sub>-based antiferroelectric ceramics can be used to prepare dielectric ceramic materials with energy storage performance. However, their efficiency is much lower than that of relaxors, which is one of the biggest obstacles for their applications. To overcome this problem, AgNbO<sub>3</sub> ceramics co-doped with Eu<sup>3+</sup> and Ta<sup>5+</sup> at the A- and B-sites were prepared in this work. The Ag<sub>0.97</sub>Eu<sub>0.01</sub>Nb<sub>0.85</sub>Ta<sub>0.15</sub>O<sub>3</sub> sample has a <em>W</em><sub>r</sub> of 6.9 J/cm<sup>3</sup> and an <em>η</em> of 74.6%. The ultrahigh energy storage density and efficiency of Ag<sub>0.97</sub>Eu<sub>0.01</sub>Nb<sub>0.85</sub>Ta<sub>0.15</sub>O<sub>3</sub> has been ascribed to the synergistic effect of the increase in the breakdown electric field, the enhancement of antiferroelectric stability, the construction of multiphase coexistence, and the modification of the domain structure morphology. The Ag<sub>0.97</sub>Eu<sub>0.01</sub>Nb<sub>0.85</sub>Ta<sub>0.15</sub>O<sub>3</sub> ceramic is expected to be one of the options for preparing dielectric capacitors.</p></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 2","pages":"Article 100869"},"PeriodicalIF":8.4000,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2352847824000844/pdfft?md5=3cb6fd75b0c1fc3dad3b422275e58306&pid=1-s2.0-S2352847824000844-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Ultrahigh energy storage density and efficiency in A/B-site co-modified silver niobate relaxor antiferroelectric ceramics\",\"authors\":\"\",\"doi\":\"10.1016/j.jmat.2024.03.014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>AgNbO<sub>3</sub>-based antiferroelectric ceramics can be used to prepare dielectric ceramic materials with energy storage performance. However, their efficiency is much lower than that of relaxors, which is one of the biggest obstacles for their applications. To overcome this problem, AgNbO<sub>3</sub> ceramics co-doped with Eu<sup>3+</sup> and Ta<sup>5+</sup> at the A- and B-sites were prepared in this work. The Ag<sub>0.97</sub>Eu<sub>0.01</sub>Nb<sub>0.85</sub>Ta<sub>0.15</sub>O<sub>3</sub> sample has a <em>W</em><sub>r</sub> of 6.9 J/cm<sup>3</sup> and an <em>η</em> of 74.6%. The ultrahigh energy storage density and efficiency of Ag<sub>0.97</sub>Eu<sub>0.01</sub>Nb<sub>0.85</sub>Ta<sub>0.15</sub>O<sub>3</sub> has been ascribed to the synergistic effect of the increase in the breakdown electric field, the enhancement of antiferroelectric stability, the construction of multiphase coexistence, and the modification of the domain structure morphology. The Ag<sub>0.97</sub>Eu<sub>0.01</sub>Nb<sub>0.85</sub>Ta<sub>0.15</sub>O<sub>3</sub> ceramic is expected to be one of the options for preparing dielectric capacitors.</p></div>\",\"PeriodicalId\":16173,\"journal\":{\"name\":\"Journal of Materiomics\",\"volume\":\"11 2\",\"pages\":\"Article 100869\"},\"PeriodicalIF\":8.4000,\"publicationDate\":\"2024-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2352847824000844/pdfft?md5=3cb6fd75b0c1fc3dad3b422275e58306&pid=1-s2.0-S2352847824000844-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materiomics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2352847824000844\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materiomics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352847824000844","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Ultrahigh energy storage density and efficiency in A/B-site co-modified silver niobate relaxor antiferroelectric ceramics
AgNbO3-based antiferroelectric ceramics can be used to prepare dielectric ceramic materials with energy storage performance. However, their efficiency is much lower than that of relaxors, which is one of the biggest obstacles for their applications. To overcome this problem, AgNbO3 ceramics co-doped with Eu3+ and Ta5+ at the A- and B-sites were prepared in this work. The Ag0.97Eu0.01Nb0.85Ta0.15O3 sample has a Wr of 6.9 J/cm3 and an η of 74.6%. The ultrahigh energy storage density and efficiency of Ag0.97Eu0.01Nb0.85Ta0.15O3 has been ascribed to the synergistic effect of the increase in the breakdown electric field, the enhancement of antiferroelectric stability, the construction of multiphase coexistence, and the modification of the domain structure morphology. The Ag0.97Eu0.01Nb0.85Ta0.15O3 ceramic is expected to be one of the options for preparing dielectric capacitors.
期刊介绍：
The Journal of Materiomics is a peer-reviewed open-access journal that aims to serve as a forum for the continuous dissemination of research within the field of materials science. It particularly emphasizes systematic studies on the relationships between composition, processing, structure, property, and performance of advanced materials. The journal is supported by the Chinese Ceramic Society and is indexed in SCIE and Scopus. It is commonly referred to as J Materiomics.
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