{"title":"CaTiO_ 3改性0.92NaNbO_3-0.08Bi（Mg_0.5Ti_0.5）O_","authors":"Peng Nong, Yue Pan, \n \n Qinpeng Dong, Dafu Zeng, Mingzhao Xu, Xiang Wang, Jiaming Wang, Lian Deng, Xiuli Chen, Huanfu Zhou","doi":"10.1007/s13391-023-00434-3","DOIUrl":null,"url":null,"abstract":"<div><p>NaNbO<sub>3</sub>-based lead-free ceramics are gaining widespread interest in recent years due to their environmental friendliness and low density, which can meet the needs of future advanced pulse power electronics for low cost, miniaturization and integration. However, a reversible phase transition of FE-AFE at room temperature for pure NaNbO<sub>3</sub> ceramic will produce a large residual polarization, resulting in a low energy storage capacity. In this work, the ternary system (1-<i>x</i>)(0.92NaNbO<sub>3</sub>-0.08Bi(M<sub>g0.5</sub>Ti<sub>0.5</sub>)O<sub>3</sub>)-<i>x</i>CaTiO<sub>3</sub> was designed by introducing the linear material CaTiO<sub>3</sub> doped into (0.92NaNbO<sub>3</sub>-0.08Bi(Mg<sub>0.5</sub>Ti<sub>0.5</sub>)O<sub>3</sub>) ceramics to enhance the disorder of A/B sites in the system. The introduce of CaTiO<sub>3</sub> could optimize the relaxation characteristics of the ceramics, refine the grain size to improve the breakdown field strength(<i>E</i><sub>b</sub>), which enhance the energy storage properties to <i>W</i><sub>rec</sub> = 5.71 J/cm<sup>3</sup> and <i>η</i> = 85.7% at 475 kV/cm. Additionally, the 0.8(0.92NN-0.08BMT)-0.2CT ceramic achieves both temperature (20–160 °C) and frequency (5 Hz -120 Hz) stability, while also obtains excellent charge/discharge performance(<i>C</i><sub>D</sub> = 607.22 A/cm<sup>2</sup>,<i>P</i><sub>D</sub> = 48.58 MW/cm<sup>3</sup>, <i>t</i><sub>0.9</sub> = 28 ns), which indicates the great potential application in pulsed power capacities.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 1","pages":"65 - 77"},"PeriodicalIF":2.1000,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Inner Mechanism of Enhanced Energy Storage Properties and Efficiency for CaTiO3 Modified 0.92NaNbO3-0.08Bi(Mg0.5Ti0.5)O3 Lead-Free Ceramics\",\"authors\":\"Peng Nong, Yue Pan, \\n \\n Qinpeng Dong, Dafu Zeng, Mingzhao Xu, Xiang Wang, Jiaming Wang, Lian Deng, Xiuli Chen, Huanfu Zhou\",\"doi\":\"10.1007/s13391-023-00434-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>NaNbO<sub>3</sub>-based lead-free ceramics are gaining widespread interest in recent years due to their environmental friendliness and low density, which can meet the needs of future advanced pulse power electronics for low cost, miniaturization and integration. However, a reversible phase transition of FE-AFE at room temperature for pure NaNbO<sub>3</sub> ceramic will produce a large residual polarization, resulting in a low energy storage capacity. In this work, the ternary system (1-<i>x</i>)(0.92NaNbO<sub>3</sub>-0.08Bi(M<sub>g0.5</sub>Ti<sub>0.5</sub>)O<sub>3</sub>)-<i>x</i>CaTiO<sub>3</sub> was designed by introducing the linear material CaTiO<sub>3</sub> doped into (0.92NaNbO<sub>3</sub>-0.08Bi(Mg<sub>0.5</sub>Ti<sub>0.5</sub>)O<sub>3</sub>) ceramics to enhance the disorder of A/B sites in the system. The introduce of CaTiO<sub>3</sub> could optimize the relaxation characteristics of the ceramics, refine the grain size to improve the breakdown field strength(<i>E</i><sub>b</sub>), which enhance the energy storage properties to <i>W</i><sub>rec</sub> = 5.71 J/cm<sup>3</sup> and <i>η</i> = 85.7% at 475 kV/cm. Additionally, the 0.8(0.92NN-0.08BMT)-0.2CT ceramic achieves both temperature (20–160 °C) and frequency (5 Hz -120 Hz) stability, while also obtains excellent charge/discharge performance(<i>C</i><sub>D</sub> = 607.22 A/cm<sup>2</sup>,<i>P</i><sub>D</sub> = 48.58 MW/cm<sup>3</sup>, <i>t</i><sub>0.9</sub> = 28 ns), which indicates the great potential application in pulsed power capacities.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":536,\"journal\":{\"name\":\"Electronic Materials Letters\",\"volume\":\"20 1\",\"pages\":\"65 - 77\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2023-05-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electronic Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13391-023-00434-3\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronic Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s13391-023-00434-3","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Inner Mechanism of Enhanced Energy Storage Properties and Efficiency for CaTiO3 Modified 0.92NaNbO3-0.08Bi(Mg0.5Ti0.5)O3 Lead-Free Ceramics
NaNbO3-based lead-free ceramics are gaining widespread interest in recent years due to their environmental friendliness and low density, which can meet the needs of future advanced pulse power electronics for low cost, miniaturization and integration. However, a reversible phase transition of FE-AFE at room temperature for pure NaNbO3 ceramic will produce a large residual polarization, resulting in a low energy storage capacity. In this work, the ternary system (1-x)(0.92NaNbO3-0.08Bi(Mg0.5Ti0.5)O3)-xCaTiO3 was designed by introducing the linear material CaTiO3 doped into (0.92NaNbO3-0.08Bi(Mg0.5Ti0.5)O3) ceramics to enhance the disorder of A/B sites in the system. The introduce of CaTiO3 could optimize the relaxation characteristics of the ceramics, refine the grain size to improve the breakdown field strength(Eb), which enhance the energy storage properties to Wrec = 5.71 J/cm3 and η = 85.7% at 475 kV/cm. Additionally, the 0.8(0.92NN-0.08BMT)-0.2CT ceramic achieves both temperature (20–160 °C) and frequency (5 Hz -120 Hz) stability, while also obtains excellent charge/discharge performance(CD = 607.22 A/cm2,PD = 48.58 MW/cm3, t0.9 = 28 ns), which indicates the great potential application in pulsed power capacities.
期刊介绍：
Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.
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