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学者姓名:娄晓杰

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Tailoring ferroelectric polarization and relaxation of BNT-based lead-free relaxors for superior energy storage properties EI
期刊论文 | 2022 , 428 | Chemical Engineering Journal
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Abstract :

Dielectric energy storage materials have attracted much attention because of their wide applications in the electronics industry. However, low energy storage density and poor thermostability limit their application. In this work, a strategy was proposed to prepare lead-free relaxor ferroelectric ceramics with ultra-high energy storage properties and superior temperature stability by precisely adjusting the relaxation and ferroelectricity states and increasing the electric field intensity. An ultra-high recoverable energy storage density (Wr) of 4.97 J/cm3 and an efficiency (η) of 84.4% are simultaneously obtained for the 0.95(0.9Bi0.5Na0.5TiO3-0.1Ba0.85Ca0.15Zr0.1Ti0.9O3)-0.05BaSnO3 ceramic. Moreover, a high Wr of 2.73 J/cm3 with brilliant η of 80.6% are obtained in the ceramic at 140 and there is almost no thermal degradation of energy storage properties from 25 to 140 . The Wr and η have decreased by 2.2% and 1.9% after 105 cycles under 200 kV/cm, respectively, which demonstrates the good cycle stability of the sample. A discharge power density of up to 99.0 MW/cm3 is obtained in the 0.95(0.9Bi0.5Na0.5TiO3-0.1Ba0.85Ca0.15Zr0.1Ti0.9O3)-0.05BaSnO3 ceramic and the good charge and discharge performance of this sample is important for practical applications. © 2021

Keyword :

Energy storage Polarization Ferroelectric materials Electric fields Electronics industry Storage (materials) Ferroelectricity Barium compounds

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GB/T 7714 Shi, Peng , Zhu, Xiaopei , Lou, Xiaojie et al. Tailoring ferroelectric polarization and relaxation of BNT-based lead-free relaxors for superior energy storage properties [J]. | Chemical Engineering Journal , 2022 , 428 .
MLA Shi, Peng et al. "Tailoring ferroelectric polarization and relaxation of BNT-based lead-free relaxors for superior energy storage properties" . | Chemical Engineering Journal 428 (2022) .
APA Shi, Peng , Zhu, Xiaopei , Lou, Xiaojie , Yang, Bian , Liu, Qida , Kong, Chuncai et al. Tailoring ferroelectric polarization and relaxation of BNT-based lead-free relaxors for superior energy storage properties . | Chemical Engineering Journal , 2022 , 428 .
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Energy storage performance of Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics with superior temperature stability under low electric fields EI SCIE
期刊论文 | 2021 , 410 | Chemical Engineering Journal
WoS CC Cited Count: 11
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Abstract :

Dielectric ceramics are highly favorable for pulsed power applications owing to their ultra-fast charge-discharge speed and excellent reliability. However, their low energy density under low electric fields remains as a bottleneck for them to be employed in integrated electronic devices with shrinking dimensions. In this work, we have designed a comprehensive strategy to synthesize lead-free (Bi1/2Na1/2)1−xSrxTi0.98(Fe1/2Nb1/2)0.02O3 (BNT-xST-2FN, x = 0.30, 0.35, 0.40 and 0.45) ceramics via traditional solid-state method. On one hand, the hybridizations of Bi3+ orbitals and the displacement of B-site cations under the applied electric field lead to a high polarization. On the other hand, the (Fe1/2Nb1/2)4+ complex-ion and SrTiO3 were introduced to improve the relaxor behavior of the system, resulting in a high energy-storage efficiency. In this way, an excellent energy density of 3.36 J/cm3 and a high energy efficiency of 81% are simultaneously achieved in the BNT-0.40ST-0.02FN composition under a low electric field of 170 kV/cm, which is superior to other BNT-based materials under similar electric fields. Moreover, the ceramic exhibits a superior thermal stability (25–200 °C). This work provides a promising approach for designing high-performance lead-free energy storage ceramics under low electric fields. © 2021 Elsevier B.V.

Keyword :

Strontium titanates Ferroelectric ceramics Energy storage Iron compounds Niobium compounds Energy efficiency Free energy Titanium compounds Storage (materials) Ferroelectric materials Electric discharges

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GB/T 7714 Kang, Ruirui , Wang, Zepeng , Lou, Xiaojie et al. Energy storage performance of Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics with superior temperature stability under low electric fields [J]. | Chemical Engineering Journal , 2021 , 410 .
MLA Kang, Ruirui et al. "Energy storage performance of Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics with superior temperature stability under low electric fields" . | Chemical Engineering Journal 410 (2021) .
APA Kang, Ruirui , Wang, Zepeng , Lou, Xiaojie , Liu, Wenyuan , Shi, Peng , Zhu, Xiaopei et al. Energy storage performance of Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics with superior temperature stability under low electric fields . | Chemical Engineering Journal , 2021 , 410 .
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Extraordinary energy storage performance and thermal stability in sodium niobate-based ceramics modified by the ion disorder and stabilized antiferroelectric orthorhombic R phase EI SCIE
期刊论文 | 2021 , 9 (43) , 24387-24396 | JOURNAL OF MATERIALS CHEMISTRY A
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Developing high-performance dielectric capacitors is essential to meet the growing demands of hybrid electric vehicles and high-power applications. The energy storage efficiency and the temperature-variant energy storage properties should be considered besides the energy density. In this work, we prepared (1 - x)(0.8NaNbO(3)-0.2SrTiO(3)) - xBi(Zn0.5Sn0.5)O-3 (abbreviated as (1 - x)(NN-ST) - xBZS) lead-free ceramics, where ion disorder is induced in the A-B sites. The experimental results indicate that the antiferroelectric orthorhombic R phase is stabilized, and the breakdown strength is enhanced due to the decreased grain size after BZS modification, which are conducive to optimizing the energy storage performance. The piezoresponse force microscopy (PFM) observation reveals that the incorporated BZS promotes the reversibility of domains, resulting in enhanced energy storage efficiency. Therefore, an energy density of 5.82 J cm(-3) and an efficiency of 92.3% are simultaneously obtained in the 0.96(NN-ST) - 0.04BZS composition, and the obtained efficiency in this work reaches a record high in NN-based energy storage ceramics. Especially, the sample displays extraordinary temperature stability, that is, high energy storage density (3.6-4.31 J cm(-3)) and efficiency (90-95%) are achieved in a wide temperature range from -60 degrees C to 180 degrees C. Our work would provide a powerful strategy for designing high-performance energy storage capacitors operating in harsh environments.

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GB/T 7714 Kang, Ruirui , Wang, Zepeng , Yang, Weijie et al. Extraordinary energy storage performance and thermal stability in sodium niobate-based ceramics modified by the ion disorder and stabilized antiferroelectric orthorhombic R phase [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (43) : 24387-24396 .
MLA Kang, Ruirui et al. "Extraordinary energy storage performance and thermal stability in sodium niobate-based ceramics modified by the ion disorder and stabilized antiferroelectric orthorhombic R phase" . | JOURNAL OF MATERIALS CHEMISTRY A 9 . 43 (2021) : 24387-24396 .
APA Kang, Ruirui , Wang, Zepeng , Yang, Weijie , Zhu, Xiaopei , Shi, Peng , Gao, Yangfei et al. Extraordinary energy storage performance and thermal stability in sodium niobate-based ceramics modified by the ion disorder and stabilized antiferroelectric orthorhombic R phase . | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (43) , 24387-24396 .
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Large electric-field-induced strain and energy storage properties in Bi0.5Na0.5TiO3-(0.5Ba0.7Ca0.3TiO3-0.5BaTi0.8Zr0.2O3) lead-free relaxor ferroelectric ceramics EI SCIE
期刊论文 | 2021 , 860 | Journal of Alloys and Compounds
WoS CC Cited Count: 3
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Abstract :

Piezoelectric ceramics with high strain can convert electrical energy and mechanical energy into each other for a wide range of applications. (1-x)Bi0.5Na0.5TiO3-x(0.5Ba0.7Ca0.3TiO3-0.5BaTi0.8Zr0.2O3) (BNT-x(BCT-BZT)) lead-free piezoelectric ceramics were prepared through solid-state reaction methods. The structural, dielectric, field-induced strain and energy storage properties of the ceramics were investigated systematically by various characterization techniques. A large field-induced strain of 0.42% with negligible negative strain and large reverse piezoelectric coefficient of 547 pm/V are obtained in BNT-9(BCT-BZT) ceramics. A large recoverable energy storage of 3.49 J/cm3 under 360 kV/cm and high energy storage efficiency of 64.9% are achieved in the BNT-10(BCT-BZT) ceramics. It believes that the large strain with negligible negative strain is mainly due to the crossover of relaxor nonpolar state to ferroelectric polar state. We believe that the BNT-x(BCT-BZT) ceramics are favorable for the practical applications in the mobile electronic devices. © 2020 Elsevier B.V.

Keyword :

Ferroelectric ceramics Ferroelectric materials Energy storage Piezoelectric ceramics Solid state reactions Piezoelectricity Ferroelectricity

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GB/T 7714 Shi, Peng , Li, Tangyuan , Lou, Xiaojie et al. Large electric-field-induced strain and energy storage properties in Bi0.5Na0.5TiO3-(0.5Ba0.7Ca0.3TiO3-0.5BaTi0.8Zr0.2O3) lead-free relaxor ferroelectric ceramics [J]. | Journal of Alloys and Compounds , 2021 , 860 .
MLA Shi, Peng et al. "Large electric-field-induced strain and energy storage properties in Bi0.5Na0.5TiO3-(0.5Ba0.7Ca0.3TiO3-0.5BaTi0.8Zr0.2O3) lead-free relaxor ferroelectric ceramics" . | Journal of Alloys and Compounds 860 (2021) .
APA Shi, Peng , Li, Tangyuan , Lou, Xiaojie , Yu, Zhonghai , Zhu, Xiaopei , Zhou, Chao et al. Large electric-field-induced strain and energy storage properties in Bi0.5Na0.5TiO3-(0.5Ba0.7Ca0.3TiO3-0.5BaTi0.8Zr0.2O3) lead-free relaxor ferroelectric ceramics . | Journal of Alloys and Compounds , 2021 , 860 .
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Doping-induced Polar Defects Improve the Electrocaloric Performance of Ba0(0.9)Sr(0.1)Hf(0.1)Ti(0.9)O(3) EI SCIE
期刊论文 | 2021 , 16 (1) | PHYSICAL REVIEW APPLIED
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In materials science, intentional doping has been widely used to improve the properties of a variety of materials. However, such an approach is not yet exploited in the fast-growing field of electrocaloric materials, which represent a serious alternative for next-generation cooling systems. Here we demonstrate with Ba0.9Sr0.1Hf0.1Ti0.9O3, an ecofriendly ferroelectric material, that doping with 2% of Cu introduces defect dipoles into the ferroelectric matrix and results in (i) enhancement of the adiabatic temperature change AT by up to 54% while maintaining performance after a large number (up to 104) of electric field cycles, (ii) suppression of the parasitic irreversibility of AT between on-field and off -field states, and (iii) an alternative design of refrigeration cycle with a prepoled sample, allowing a two-field-step process showing both conventional (AT> 0) and inverse (AT< 0) responses when the field is sequentially varied. We also demonstrate that doping significantly increases the energy storage density (by up to 72%). The defect engineering approach therefore offers a path for designing ferroelectrics with improved electrocaloric performances. Beyond ferroelectrics, this strategy could also be promising in other solid-state caloric materials (magnetocalorics, elastocalorics, etc.).

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GB/T 7714 Li, Junning , Lv, Jing , Zhang, Dawei et al. Doping-induced Polar Defects Improve the Electrocaloric Performance of Ba0(0.9)Sr(0.1)Hf(0.1)Ti(0.9)O(3) [J]. | PHYSICAL REVIEW APPLIED , 2021 , 16 (1) .
MLA Li, Junning et al. "Doping-induced Polar Defects Improve the Electrocaloric Performance of Ba0(0.9)Sr(0.1)Hf(0.1)Ti(0.9)O(3)" . | PHYSICAL REVIEW APPLIED 16 . 1 (2021) .
APA Li, Junning , Lv, Jing , Zhang, Dawei , Zhang, Lixue , Hao, Xihong , Wu, Ming et al. Doping-induced Polar Defects Improve the Electrocaloric Performance of Ba0(0.9)Sr(0.1)Hf(0.1)Ti(0.9)O(3) . | PHYSICAL REVIEW APPLIED , 2021 , 16 (1) .
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Colossal Reversible Barocaloric Effects in Layered Hybrid Perovskite (C10H21NH3)(2)MnCl4 under Low Pressure Near Room Temperature EI SCIE
期刊论文 | 2021 , 31 (46) | ADVANCED FUNCTIONAL MATERIALS
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Barocaloric effects in a layered hybrid organic-inorganic compound, (C10H21NH3)(2)MnCl4, that are reversible and colossal under pressure changes below 0.1 GPa are reported. This barocaloric performance originates in a phase transition characterized by different features: A strong disordering of the organic chains, a very large volume change, a very large sensitivity of the transition temperature to pressure and a small hysteresis. The obtained values are unprecedented among solid-state cooling materials at such low pressure changes and demonstrate that colossal effects can be obtained in compounds other than plastic crystals. The temperature-pressure phase diagram displays a triple point indicating enantiotropy at high pressure.

Keyword :

barocaloric effects Raman scattering hybrid layered perovskites calorimetry phase diagrams

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GB/T 7714 Li, Junning , Barrio, Maria , Dunstan, David J. et al. Colossal Reversible Barocaloric Effects in Layered Hybrid Perovskite (C10H21NH3)(2)MnCl4 under Low Pressure Near Room Temperature [J]. | ADVANCED FUNCTIONAL MATERIALS , 2021 , 31 (46) .
MLA Li, Junning et al. "Colossal Reversible Barocaloric Effects in Layered Hybrid Perovskite (C10H21NH3)(2)MnCl4 under Low Pressure Near Room Temperature" . | ADVANCED FUNCTIONAL MATERIALS 31 . 46 (2021) .
APA Li, Junning , Barrio, Maria , Dunstan, David J. , Dixey, Richard , Lou, Xiaojie , Tamarit, Josep-Lluis et al. Colossal Reversible Barocaloric Effects in Layered Hybrid Perovskite (C10H21NH3)(2)MnCl4 under Low Pressure Near Room Temperature . | ADVANCED FUNCTIONAL MATERIALS , 2021 , 31 (46) .
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Superior energy storage properties in (1 & minus;x)(0.65Bi(0.5)Na0.5TiO(3)-0.35Bi(0.2)Sr(0.7)TiO(3))-xCaZrO(3) ceramics with excellent temperature stability EI SCIE
期刊论文 | 2021 , 876 | JOURNAL OF ALLOYS AND COMPOUNDS
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Novel (1 & minus;x)(0.65Bi0.5Na0.5TiO3-0.35Bi0.2Sr0.7TiO3)-xCaZrO3 (BNT-BST-xCZ, x = 0 & ndash;0.15) ceramics were manufactured through a solid phase sintering process and their structural and electrical performance have been systematically investigated. By doping CaZrO3, a higher recoverable energy storage density of 2.9 J/cm3 and energy storage efficiency of 80% at 330 kV/cm can be simultaneously obtained in BNT-BST-0.1CZ ceramic. Further analysis with the aid of finite element simulation indicates that the improvement of energy storage performance lies in the refined grain size and reduced defects, which are both conductive to improve the dielectric breakdown strength. More importantly, incorporating CaZrO3 gives slimmer hysteresis loops as well as excellent temperature (20 & ndash;150 degrees C) and frequency (5 & ndash;200 Hz) stability of energy storage properties. Moreover, a stable dielectric permittivity of in an ultra-wide range from 44 degrees C to 483 degrees C was achieved in BNT-BST-0.10CZ ceramic. Our findings suggest that the BNT-BST-0.1CZ ceramic has great potential applications in pulsed power systems and high-temperature capacitors. (c) 2021 Elsevier B.V. All rights reserved.

Keyword :

Energy storage Breakdown strength Lead-free ceramics Temperature stability

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GB/T 7714 Guo, Xudong , Shi, Peng , Lou, Xiaojie et al. Superior energy storage properties in (1 & minus;x)(0.65Bi(0.5)Na0.5TiO(3)-0.35Bi(0.2)Sr(0.7)TiO(3))-xCaZrO(3) ceramics with excellent temperature stability [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2021 , 876 .
MLA Guo, Xudong et al. "Superior energy storage properties in (1 & minus;x)(0.65Bi(0.5)Na0.5TiO(3)-0.35Bi(0.2)Sr(0.7)TiO(3))-xCaZrO(3) ceramics with excellent temperature stability" . | JOURNAL OF ALLOYS AND COMPOUNDS 876 (2021) .
APA Guo, Xudong , Shi, Peng , Lou, Xiaojie , Liu, Qida , Zuo, Hong . Superior energy storage properties in (1 & minus;x)(0.65Bi(0.5)Na0.5TiO(3)-0.35Bi(0.2)Sr(0.7)TiO(3))-xCaZrO(3) ceramics with excellent temperature stability . | JOURNAL OF ALLOYS AND COMPOUNDS , 2021 , 876 .
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Sulfate assisted synthesis of alpha-type nickel hydroxide nanowires with 3D reticulation for energy storage in hybrid supercapacitors SCIE
期刊论文 | 2021 | MATERIALS CHEMISTRY FRONTIERS
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Nickel hydroxide, as a high high-efficiency electroactive material, is a promising electroactive material for advanced hybrid supercapacitors due to its high theoretical capacity, low-cost, and good thermal and chemical stabilities. Although various nanostructures of nickel hydroxide have been widely reported for energy storage devices, such as nanoparticles, nanosheets, nanoflowers, and so on, nickel hydroxide with one-dimensional nanowire morphology has been rarely investigated until now. Meanwhile, previous reports have shown that the energy storage performance of alpha-Ni(OH)(2) is superior to other types of nickel hydroxides. Based on the above points of view, alpha type Ni(OH)(2) nanowires with three-dimensional (3D) reticulation containing SO42- (abbreviated as NSOH NWs) were successfully obtained by a sulfate assisted hydrothermal approach in the present work and further employed as an electroactive material in hybrid supercapacitors (HSCs). The formation mechanism of the NSOH and the effects of SO42- are also discussed. Thanks to its novel 3D porous morphology and alpha-type phase structure, the as-prepared NSOH NW electrode presents a high specific capacity of 246.3 mA h g(-1) at 1 A g(-1), along with a good cycling stability of 91.7% after 4000 cycles. Meanwhile, the as-assembled NSOH NWs//AC HSCs can provide a high energy density of 59.8 W h kg(-1) at a power density of 830.3 W kg(-1). The HSCs also show 91.5% specific capacity retention after 10 000 cycles. All above results manifest that the proposed NSOH NWs with 3D reticulation have significant potential for advanced HSC applications.

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GB/T 7714 Li, Wei , Huang, Zhongzheng , Jia, Yaduo et al. Sulfate assisted synthesis of alpha-type nickel hydroxide nanowires with 3D reticulation for energy storage in hybrid supercapacitors [J]. | MATERIALS CHEMISTRY FRONTIERS , 2021 .
MLA Li, Wei et al. "Sulfate assisted synthesis of alpha-type nickel hydroxide nanowires with 3D reticulation for energy storage in hybrid supercapacitors" . | MATERIALS CHEMISTRY FRONTIERS (2021) .
APA Li, Wei , Huang, Zhongzheng , Jia, Yaduo , Cui, Yunlong , Shi, Peng , Li, Tingting et al. Sulfate assisted synthesis of alpha-type nickel hydroxide nanowires with 3D reticulation for energy storage in hybrid supercapacitors . | MATERIALS CHEMISTRY FRONTIERS , 2021 .
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Enhanced electrocaloric effect in BaSn/TiO3 ceramics by addition of CuO EI SCIE
期刊论文 | 2021 , 851 | Journal of Alloys and Compounds
WoS CC Cited Count: 1
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For several decades, ferroelectrics with enhanced electrocaloric (EC) effect have served as competitive alternatives for solid-state cooling devices. In order to enhance the EC effect, there has been increasing research interest on exploring novel systems of EC materials and efficient cooling cycles. In contrast, optimizing intrinsic properties through doping effect has been relatively ignored. In this work, we introduce the binary compound CuO as an additive into the conventional lead-free BaSn0·11Ti0·89O3 (BST) ferroelectric ceramic. This leads to a remarkably large adiabatic temperature change of ΔT = −0.33 °C under a relatively low electric field (10 kV/cm). This is higher than the ΔT of pure BST (ΔT = −0.15 °C, under 10 kV/cm). The largest of ΔT = −0.48 °C was achieved under 20 kV/cm. We assume that the large temperature change was achieved due to the addition of CuO additive, which improves the ferroelectric properties (e.g., a higher polarization and a lower coercive field). In addition, by introducing CuO additives, the breakdown electric field of the ceramics was also enhanced at high temperatures (above the Curie temperature, TC) and the working temperature range was greatly broadened (30 °C–60 °C) under a slightly high electric field. Our findings present a promising approach to enhance the EC effect by tuning the intrinsic properties of EC materials. We expect that our work emphasizes the importance of additives in enhancing the EC properties. © 2020 Elsevier B.V.

Keyword :

Additives Cooling systems Barium compounds Tin compounds Electrochromic devices Electric fields Ferroelectricity Ferroelectric ceramics Ferroelectric materials Copper oxides

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GB/T 7714 Wang, Yuting , Li, Junning , Yuan, Ruihao et al. Enhanced electrocaloric effect in BaSn/TiO3 ceramics by addition of CuO [J]. | Journal of Alloys and Compounds , 2021 , 851 .
MLA Wang, Yuting et al. "Enhanced electrocaloric effect in BaSn/TiO3 ceramics by addition of CuO" . | Journal of Alloys and Compounds 851 (2021) .
APA Wang, Yuting , Li, Junning , Yuan, Ruihao , Gao, Hongcheng , Lv, Jing , Xue, Dezhen et al. Enhanced electrocaloric effect in BaSn/TiO3 ceramics by addition of CuO . | Journal of Alloys and Compounds , 2021 , 851 .
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Multifunctionality in (K,Na)NbO3-based ceramic near polymorphic phase boundary EI SCIE
期刊论文 | 2021 , 130 (6) | JOURNAL OF APPLIED PHYSICS
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The 0.95K(0.42)Na(0.58)Nb(0.96)Sb(0.04)O(3)-0.02BaZrO(3)-0.03Bi(0.5)K(0.5)HfO(3) ceramic was fabricated via a conventional solid-state reaction. This ceramic exhibits the diffuse polymorphic phase boundary (PPB) near room temperature. The dielectric, ferroelectric, electromechanical, electrocaloric, and dielectric energy storage properties were studied systemically. The normalized large signal d(33)* values are approximately 400-600 pm/V at measured temperatures and electric fields, which are larger than or comparable with the values reported in other lead-free compositions. The electrocaloric strength is enhanced at the broad region of PPB provided by the indirect and direct measurements. At low field of 30 kV/cm, the dielectric energy storage is similar to 0.12-018 J/cm(3) at relative broad temperature range due to the diffuse nature of polymorphic phase boundary. Theoretical simulations reveal that multi-element dopants, such as Sb5+, Hf4+, Zr4+, and Bi3+ ions, could induce the breaking of local structure symmetry in the orthorhombic phase to form the PPB. In addition, the charge distribution may also break the long-range ferroelectric order through the analysis of Bader charge. Our study suggests that the K0.5Na0.5NbO3-based ceramic exhibits improved performance and good thermal stability in piezoelectric, electrocaloric, and dielectric energy storage characteristics in terms of the design of multi-element dopants to form the PPB and it will benefit the promising applications in electronic devices.

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GB/T 7714 Wang, Xiangjian , Lou, Xiaojie , Geng, Wenping et al. Multifunctionality in (K,Na)NbO3-based ceramic near polymorphic phase boundary [J]. | JOURNAL OF APPLIED PHYSICS , 2021 , 130 (6) .
MLA Wang, Xiangjian et al. "Multifunctionality in (K,Na)NbO3-based ceramic near polymorphic phase boundary" . | JOURNAL OF APPLIED PHYSICS 130 . 6 (2021) .
APA Wang, Xiangjian , Lou, Xiaojie , Geng, Wenping , Yao, Yingbang , Tao, Tao , Liang, Bo et al. Multifunctionality in (K,Na)NbO3-based ceramic near polymorphic phase boundary . | JOURNAL OF APPLIED PHYSICS , 2021 , 130 (6) .
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