Xue Zhang, Fan Zhang*, Yiwen Niu, Zhiqiang Zhang, Xueqiong Lei and Zhan Jie Wang,
{"title":"Perovskite 高熵氧化物改性（Bi0.5Na0.5）TiO3 基陶瓷的卓越储能性能","authors":"Xue Zhang, Fan Zhang*, Yiwen Niu, Zhiqiang Zhang, Xueqiong Lei and Zhan Jie Wang, ","doi":"10.1021/acsaelm.4c00679","DOIUrl":null,"url":null,"abstract":"<p >Due to the typical dielectric relaxation behavior of perovskite high-entropy ceramics (HECs), high-entropy engineering is beneficial for improving energy storage performance and has drawn extensive concern. In this study, high-entropy oxide (Bi<sub>0.2</sub>Na<sub>0.2</sub>Ba<sub>0.2</sub>Sr<sub>0.2</sub>Ca<sub>0.2</sub>)(Ti<sub>0.9</sub>Nb<sub>0.1</sub>)O<sub>3</sub> (BNCBSTN)-modified 0.45(Bi<sub>0.5</sub>Na<sub>0.5</sub>)TiO<sub>3</sub>-0.55(Sr<sub>0.7</sub>Bi<sub>0.2</sub>)TiO<sub>3</sub> (BNT-SBT) systems, BNT-SBT-<i>x</i>BNCBSTN (0 ≤ <i>x</i> ≤ 0.5) ceramics, were designed and prepared using a hydrothermal method. It is found that the introduction of BNCBSTN into BNT-SBT promotes the configuration entropy and induces strong dielectric relaxation behavior, thereby greatly improving the energy storage performance. In addition, grain refinement, increased resistivity, and widened band gap are achieved by the modification of BNCBSTN, leading to a significant enhancement of the breakdown electric field (<i>E</i><sub>b</sub>). Consequently, BNT-SBT-0.3BNCBSTN HEC exhibits a preeminent recoverable energy density (<i>W</i><sub>rec</sub> = 6.04 J/cm<sup>3</sup>) and energy storage efficiency (η = 85%) under an excellent <i>E</i><sub>b</sub> of 410 kV/cm as well as good temperature and frequency stability. The remarkable improvement in energy storage performance indicates that modifying the ferroelectric system with high-entropy oxide is a feasible approach for developing energy storage capacitors.</p>","PeriodicalId":3,"journal":{"name":"ACS Applied Electronic Materials","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Excellent Energy Storage Performance of Perovskite High-Entropy Oxide-Modified (Bi0.5Na0.5)TiO3-Based Ceramics\",\"authors\":\"Xue Zhang, Fan Zhang*, Yiwen Niu, Zhiqiang Zhang, Xueqiong Lei and Zhan Jie Wang, \",\"doi\":\"10.1021/acsaelm.4c00679\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Due to the typical dielectric relaxation behavior of perovskite high-entropy ceramics (HECs), high-entropy engineering is beneficial for improving energy storage performance and has drawn extensive concern. In this study, high-entropy oxide (Bi<sub>0.2</sub>Na<sub>0.2</sub>Ba<sub>0.2</sub>Sr<sub>0.2</sub>Ca<sub>0.2</sub>)(Ti<sub>0.9</sub>Nb<sub>0.1</sub>)O<sub>3</sub> (BNCBSTN)-modified 0.45(Bi<sub>0.5</sub>Na<sub>0.5</sub>)TiO<sub>3</sub>-0.55(Sr<sub>0.7</sub>Bi<sub>0.2</sub>)TiO<sub>3</sub> (BNT-SBT) systems, BNT-SBT-<i>x</i>BNCBSTN (0 ≤ <i>x</i> ≤ 0.5) ceramics, were designed and prepared using a hydrothermal method. It is found that the introduction of BNCBSTN into BNT-SBT promotes the configuration entropy and induces strong dielectric relaxation behavior, thereby greatly improving the energy storage performance. In addition, grain refinement, increased resistivity, and widened band gap are achieved by the modification of BNCBSTN, leading to a significant enhancement of the breakdown electric field (<i>E</i><sub>b</sub>). Consequently, BNT-SBT-0.3BNCBSTN HEC exhibits a preeminent recoverable energy density (<i>W</i><sub>rec</sub> = 6.04 J/cm<sup>3</sup>) and energy storage efficiency (η = 85%) under an excellent <i>E</i><sub>b</sub> of 410 kV/cm as well as good temperature and frequency stability. The remarkable improvement in energy storage performance indicates that modifying the ferroelectric system with high-entropy oxide is a feasible approach for developing energy storage capacitors.</p>\",\"PeriodicalId\":3,\"journal\":{\"name\":\"ACS Applied Electronic Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-06-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Electronic Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsaelm.4c00679\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Electronic Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaelm.4c00679","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Excellent Energy Storage Performance of Perovskite High-Entropy Oxide-Modified (Bi0.5Na0.5)TiO3-Based Ceramics
Due to the typical dielectric relaxation behavior of perovskite high-entropy ceramics (HECs), high-entropy engineering is beneficial for improving energy storage performance and has drawn extensive concern. In this study, high-entropy oxide (Bi0.2Na0.2Ba0.2Sr0.2Ca0.2)(Ti0.9Nb0.1)O3 (BNCBSTN)-modified 0.45(Bi0.5Na0.5)TiO3-0.55(Sr0.7Bi0.2)TiO3 (BNT-SBT) systems, BNT-SBT-xBNCBSTN (0 ≤ x ≤ 0.5) ceramics, were designed and prepared using a hydrothermal method. It is found that the introduction of BNCBSTN into BNT-SBT promotes the configuration entropy and induces strong dielectric relaxation behavior, thereby greatly improving the energy storage performance. In addition, grain refinement, increased resistivity, and widened band gap are achieved by the modification of BNCBSTN, leading to a significant enhancement of the breakdown electric field (Eb). Consequently, BNT-SBT-0.3BNCBSTN HEC exhibits a preeminent recoverable energy density (Wrec = 6.04 J/cm3) and energy storage efficiency (η = 85%) under an excellent Eb of 410 kV/cm as well as good temperature and frequency stability. The remarkable improvement in energy storage performance indicates that modifying the ferroelectric system with high-entropy oxide is a feasible approach for developing energy storage capacitors.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
