Optimized dielectric energy storage performance in ZnO-modified Bi0.5Na0.5TiO3-Sr0.7Bi0.2?0.1TiO3 ceramics with composite structure and element segregation

被引：66
作者：
Zhou, Xuefan [1 ]
Xue, Guoliang [1 ]
Su, Yingchun [1 ]
Luo, Hang [1 ]
Zhang, Yan [1 ]
Wang, Dawei [2 ]
Zhang, Dou [1 ]
机构：
[1] Cent South Univ, Powder Met Res Inst, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[2] Harbin Inst Technol, Funct Mat & Acousto Opt Instruments Inst, Sch Instrumentat Sci & Engn, Harbin 150080, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2023年 / 458卷
关键词：
Bi0; 5Na0; 5TiO3; Composite; Element segregation; Energy storage; Capacitor; BI2TI2O7; THIN-FILMS; PHASE-TRANSITIONS; DOPED AGNBO3; HIGH-EFFICIENCY; DENSITY; CAPACITORS;
D O I：
10.1016/j.cej.2023.141449
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this work, ZnO is introduced into the 0.55Bi0.5Na0.5TiO3-0.45Sr0.7Bi0.20.1TiO3 (BNT-SBT) to optimize the dielectric energy storage performance. ZnO is not only used as a sintering aid to decrease the sintering tem-perature and ceramic grain size, but also enhances the random fields and polar nanoregions activity in the ce-ramics by Zn2+ doping. Intriguingly, the ZnO-modified BNT-SBT ceramics present a 0-3 type composite structure containing the TiZn2O4 and Bi2Ti2O7 linear dielectrics. Moreover, obvious element segregation is generated in the BNT-based matrix grains showing different Sr2+/(Bi3+, Na+) ratios and polarization magnitudes. The sig-nificant variations in composition distribution, grain and domain configurations cause the overall optimization of energy storage properties, reflected in the enhanced breakdown strength, delayed polarization saturation, and reduced polarization hysteresis. As a result, the optimized Wrec -5.84 J/cm3 and eta -93 % at 40 kV/mm is obtained in the BNT-SBT-0.10ZnO ceramic, superior to that of the BNT-SBT ceramic (Wrec -3.35 J/cm3 and eta -89 % at 28 kV/mm).
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页数：13
相关论文
共 98 条
[1]  
Acosta M., J AM CERAM SOC, V98
[2]   Novel transparent Eu and Hf co-doped AgNbO3 antiferroelectric ceramic with high-quality energy-storage performance [J].
Ai, Jinshui ;
Chen, Xingtao ;
Luo, Lan ;
Zheng, Renkui ;
Yu, Lixin .
CERAMICS INTERNATIONAL, 2022, 48 (16) :23630-23637
[3]   Why Are There So Few Perovskite Ferroelectrics? [J].
Benedek, Nicole A. ;
Fennie, Craig J. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (26) :13339-13349
[4]   RF and microwave dielectric properties of (Zn0.95M0.05)2TiO4 (M = Mn2+, Co2+, Ni2+ or Cu2+) ceramics [J].
Butee, Sandeep ;
Kulkarni, Ajit R. ;
Prakash, Om ;
Aiyar, R. P. R. C. ;
Sudheendran, K. ;
James, K. C. Raju .
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2010, 168 (1-3) :151-155
[5]   Excellent energy storage performance in La and Ta co-doped AgNbO3 antiferroelectric ceramics [J].
Chao, Wenna ;
Gao, Jinggang ;
Yang, Tongqing ;
Li, Yongxiang .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2021, 41 (15) :7670-7677
[6]   Enhanced energy storage density in Ca and Ta co-doped AgNbO3antiferroelectric ceramics [J].
Chao, Wenna ;
Yang, Tongqing ;
Li, Yongxiang ;
Liu, Zhifu .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2020, 103 (12) :7283-7290
[7]   Phase structure and defect engineering in (Bi0.5Na0.5)TiO3-based relaxor antiferroelectrics toward excellent energy storage performance [J].
Che, Zhiyi ;
Ma, Li ;
Luo, Gengguang ;
Xu, Chao ;
Cen, Zhenyong ;
Feng, Qin ;
Chen, Xiyong ;
Ren, Kailiang ;
Luo, Nengneng .
NANO ENERGY, 2022, 100
[8]   Ultrahigh storage density achieved with (1-x)KNN-xBZN ceramics [J].
Chen, Bi ;
Tian, Ye ;
Lu, Jiangbo ;
Wu, Di ;
Qiao, Xiaoshuang ;
Liang, Pengfei ;
Du, Hongliang ;
Peng, Zhanhui ;
Ren, Xiaodan ;
Chao, Xiaolian ;
Yang, Zupei .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2020, 40 (08) :2936-2944
[9]   Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design [J].
Chen, Liang ;
Deng, Shiqing ;
Liu, Hui ;
Wu, Jie ;
Qi, He ;
Chen, Jun .
NATURE COMMUNICATIONS, 2022, 13 (01)
[10]   Simultaneously achieving ultrahigh energy storage density and energy efficiency in barium titanate based ceramics [J].
Chen, Xiuli ;
Li, Xu ;
Sun, Jie ;
Sun, Congcong ;
Shi, Junpeng ;
Pang, Feihong ;
Zhou, Huanfu .
CERAMICS INTERNATIONAL, 2020, 46 (03) :2764-2771
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