Journal of Materiomics
·
2025
·
IF 9.6
Qing Li,Wei Deng,Tian-Ci Ma,Changhao Zhao,Mupeng Zheng,Lei Zhao,Qiong Wu,Chaofeng Wu,Fang-Zhou Yao,Wen Gong,Dragan Damjanovic,Mao-Hua Zhang
Complex lead-based perovskites with the general formula Pb(B x ’B 1- x ’’)O 3 , represent an important class of antiferroelectrics beyond the prototypical PbZrO 3 and NaNbO 3 . Depending on the combination of B-site species and the degree of cationic ordering, these materials exhibit a wide range of ferroic behaviors, spanning from antiferroelectric to (relaxor) ferroelectric responses. In this study, we investigate (Pb 1- x Ba x )(Yb 1/2 Nb 1/2 )O 3 polycrystals synthesized via a two-step processing route. Despite displaying antiferroelectric, ferroelectric, or nearly linear dielectric behavior at room temperature, all compositions exhibit double polarization hysteresis loops in proximity to a lower-temperature dielectric anomaly. This dielectric anomaly originates from the competition between antipolar and nanoscale polar regions, and shifts towards lower temperature with increasing Ba content, reflecting the suppression of long-range antiferroelectric ordering. Notably, a composition-invariant temperature scale, T *, is identified and associated with the onset of static correlations among nanoscale polar entities, consistent with behavior reported in other complex Pb-based relaxor ferroelectrics. Superlattice reflections arising from antiparallel Pb 2+ displacements persist above T *, suggesting an intricate cation-ordering landscape requiring further investigation. These findings underscore the coexistence and competition of polar and antipolar instabilities in complex lead-based perovskites, and their pronounced sensitivity to chemical substitution, thermal fluctuations, and external electric fields.
研究领域:
凝聚态物理
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材料科学
·
铁性材料
·
介电与绝缘体
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Yongxing Wei,Chenxing Bai,Changqing Jin,Weitong Zhu,Lin Hu,Ruihua Nan,Zhonghua Dai
In this study, the temperature dependence of dielectric behaviours and the polarisation and electrostrain responses of 0.4Bi(Ni 1/2 Zr 1/2 )O 3 –0.6PbTiO 3 (0.4BNZ–0.6PT) were studied to better understand their electrical performance. A Rietveld refinement analysis of the XRD pattern, supported by bright-field TEM images, suggests the coexistence of tetragonal and pseudocubic phases. Above 398 K, the normalised piezoelectric coefficient ( d 33 ∗ ) increases due to heating, reaching 941 pm/V at 453 K. Most importantly, 0.4BNZ–0.6PT displays obvious frequency dispersion in the ferroelectric state. A low-temperature dielectric anomaly occurred at approximately 175 K that was related to the origin of the frequency dispersion. The planar electromechanical coupling constant ( k p ) also changed considerably after heating, increasing from 0.14 at 90 K to 0.43 at 300 K. This indicates an intrinsic relationship between the dielectric and piezoelectric behaviours. Our study demonstrates that there is a significant difference between typical ferroelectrics and the ferroelectric state of 0.4BNZ–0.6PT relaxor ferroelectrics.
研究领域:
材料科学
·
固体物理
·
电陶瓷
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DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2021
·Vol. 37
·期 2
·280-285
·
IF 1.307
Chen Yawei,Wang Shiyang,Jie Yulin,Lei Zhanwu,Cao Ruiguo,Jiao Shuhong
Sodium ion batteries(SIBs) are promising energy storage devices for smart grid applications due to their low cost and the high abundance of sodium, but few cathode materials of SIBs with high energy density are available for practical applications. Herein, a series of NaNCM ternary materials(NCM=nickel-cobalt-manganese) is obtained by solid- phase reaction with well-regulated temperature and other reaction conditions. XRD results show that impure NiO phase is more likely to occur under high nickel content. The cross-section SEM indicates that the primary particles in the electrode materials are radially distributed along the radial direction, and the internal porous structure is conducive to the infiltration of electrolyte. The initial specific capacities of Na[Ni 0.68 Co 0.10 Mn 0.22 ]O 2 (NaNCM712), Na[Ni 0.6 Co 0.2 Mn 0.2 ]O 2 (NaNCM622) and Na[Ni 0.4 Co 0.3 Mn 0.3 ]O 2 (NaNCM433) at 0.2 C are 165.5, 153.1 and 146.8 mA·h/g, and the corresponding capacity retention rates are 63.2%, 78.5% and 71.7% after 100 cycles. NaNCM712 possesses the highest initial specific capacity, and NaNCM433 delivers the best rate capability. The rate capabilities of high-nickel and low-cobalt NaNCM cathodes need to be further improved. Moreover, ex-situ XRD pattern reveals the structure evolution (from O3 type to P2 type) during a long cycling charge and discharge process.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
ACS Applied Nano Materials
·
2021
·
IF 5.097
Ying Zheng,Mingqiang Cheng,Xinyan Wu,Shuang Zhang,Zhu Liu,Yanqiang Li,Weiquan Shao,Qing Lin,Jinshan Tan,Shouwu Gao,Yongcheng Zhang,Wanneng Ye
Mechanical energy can be directly transformed into chemical energy by piezoelectric materials, namely, piezocatalysis, which is a potential tactic for renewable clean energy collection and environmental purification. The piezocatalytic efficiency strongly relies on the piezoelectric property and free charge concentration of piezocatalysts. Here, four samarium-doped (1 – x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 nanostructures were designed to investigate the correlation between the piezoelectric property and piezocatalytic performance. The diverse dye degradation efficiencies confirmed the high piezoelectric coefficient toward high catalytic activity. The degradation efficiency for acid orange 7 (AO7) was 100% within 20 min, while those for methyl orange (MO), methylene blue, and rhodamine B dyes were 97, 78, and 72%, respectively, within 40 min under ultrasonic vibration only. Furthermore, high catalytic efficiency of 96% was still maintained for AO7 degradation after 10 consecutive degradation cycles for samarium-doped 0.70Pb(Mg1/3Nb2/3)O3-0.30PbTiO3 due to its high piezoelectric coefficient. The investigation of the catalytic mechanism demonstrated that hole and superoxide radicals were the primary active species toward AO7 degradation, whereas hydroxyl and hole radicals were for MO degradation. This work not only demonstrates the highly efficient catalytic activity of samarium-doped (1 – x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 nanostructures but also gives a deep comprehension of the correlation between the piezoelectric property and catalytic performance of piezocatalysts.
研究领域:
材料科学
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环境催化
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纳米材料
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物理化学
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能源材料
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DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2023
·Vol. 106
·期 5
·2963-2971
·
IF 3.9
Nan Weng,Ji Zhang,Jiajia Wang,Tianze Pan,Jing Wang,Yaojin Wang
Ceramic capacitors with high electrostatic energy storage performances have captured much research interest in latest years. Sodium bismuth titanate (Na 0.5 Bi 0.5 TiO 3 )-based ferroelectric ceramics show great potential due to their environment-friendly composition, high polarization, and excellent relaxor properties. However, the nonergodic relaxor state of Na 0.5 Bi 0.5 TiO 3 -based ceramics hampers the decrement of remanent polarization, leading to poor energy storage performance. Herein, the (1 − x )Na 0.5 Bi 0.5 TiO 3 – x La(Ni 2/3 Ta 1/3 )O 3 ceramics were designed to generate the transformation between nonergodic and ergodic relaxor state. As a result, the ceramics exhibit improved dielectric relaxation, slim polarization–electric field loops, and flattened current–electric field curves due to highly dynamic polar nanoregions. Particularly, the 0.85Na 0.5 Bi 0.5 TiO 3 –0.15La(Ni 2/3 Ta 1/3 )O 3 ceramics show large breakdown electric field E b (345 kV/cm), high recoverable energy density W rec (3.6 J/cm 3 ), and efficiency η (80.6%), revealing potential applications in electrostatic energy storage.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2024
·Vol. 107
·期 7
·4846-4853
·
IF 3.5
Shunshun Jiang,Ji Zhang,Dmitry V. Karpinsky,Jinglei Li,Lisha Liu,Yaojin Wang
As one of the important electronic components, the dielectric capacitors for energy storage applications have been extensively studied in recent years. Among various dielectric materials, the perovskite oxide Bi 0.5 Na 0.5 TiO 3 -based ceramics have become promising candidates due to their high polarization, dielectric tunability, environment-friendly composition, and so forth. Herein, the relaxor ferroelectric ceramics of Bi 0.5 Na 0.5 TiO 3 –SrTiO 3 –Bi(Mg 0.5 Zr 0.5 )O 3 were prepared via solid-state reaction method. The sample with optimal composition not only retains the high polarization by introducing Bi 3+ ions, but also achieves the reduced remanent polarization by enhancing relaxor behavior and the promoted electric breakdown strength by the grain size refinement. Accordingly, a high recoverable energy density of 8.3 J/cm 3 under 450 kV/cm and the superb charge/discharge properties (current density C D = 1200 A/cm 2 , power density P D = 150 MW/cm 3 , charge/discharge time t 0.9 = 0.15 µs) are achieved, revealing great prospect in energy storage applications.
研究领域:
材料科学
·
电子工程
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DOI
高影响因子
Physical Review Materials
·
2017
·Vol. 1
·期 6
·064405
·
IF 0
Yu Feng,Wei-Li Li,Yang Yu,He-Nan Jia,Yu-Long Qiao,Wei-Dong Fei
An approach to greatly enhance the piezoelectric properties ($\ensuremath{\sim}400$ pC/N) of the tetragonal $\mathrm{BaTi}{\mathrm{O}}_{3}$ polycrystal using a small number of $A$-site acceptor-donor substitutions [D. Xu et al., Acta Mater. 79, 84 (2014)] has been proposed. In this study, $\mathrm{Pb}(\mathrm{ZrTi}){\mathrm{O}}_{3}$ (PZT) based polycrystals with various crystal symmetries (tetragonal, rhombohedral, and so on) were chosen to investigate the piezoelectricity enhancement mechanism. X-ray diffraction results show that doping generates an intrinsic uniaxial compressive stress along the ${[001]}_{\mathrm{pc}}$ direction in the $AB{\mathrm{O}}_{3}$ lattices. Piezoelectric maps in the parameter space of temperature and Ti concentration in the PZT and doped system show a more significant enhancement effect of $\mathrm{L}{\mathrm{i}}^{+}\text{\ensuremath{-}}\mathrm{A}{\mathrm{l}}^{3+}$ codoping in tetragonal PZT than in the rhombohedral phase. Phenomenological thermodynamic analysis indicates that the compressive stress results in more serious flattening of the free-energy profile in tetragonal PZT, compared with that in the rhombohedral phase. The chemical stress obtained by this acceptor-donor codoping can be utilized to optimize the piezoelectric performance on the tetragonal-phase site of the morphotropic phase boundary in the PZT system. The present study provides a promising route to the large piezoelectric effect induced by chemical-stress-driven flattening of the free-energy profile.
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DOI
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Lu Cao,Huijiadai Luo,Xiaoxiao Huang,Yong Huang,Hua Ke
BaTiO 3 ceramics were synthesized via a conventional solid-state reaction method to investigate the influence of lattice strain induced by tiny content of Fe 3+ doping (1 mol%) on the structural evolution and ferroelectric properties. The incorporation of Fe 3+ introduces a compressive strain field, resulting in a reduced c / a ratio and a disordered domain configuration. Such lattice strain significantly enhances the maximum ferroelectric polarization ( P max ) from 23.2 μC/cm 2 for undoped BaTiO 3 ceramic to 40.6 μC/cm 2 for BaTi 0.99 Fe 0.01 O 3- δ ceramic. This observed enhancement is attributed to a lowered energy barrier for polarization switching and the facilitation of domain wall motion. Phenomenological analysis based on symmetry-related strain-polarization coupling further reveals that the Fe 3+ induced compressive strain mitigates the lattice mismatch stress at domain boundaries and alleviates the strain constraint on polarization switching. These findings clarify the relationship between chemical-doping-induced lattice strain and ferroelectric performance, offering a pathway for the deliberate control of domain structure to achieve high ferroelectric performance in bulk ceramics.
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DOI
高影响因子
Energy Storage Materials
·
2026
·
IF 19.3
Liang Deng,Shengwei Dong,Linfeng Shi,Anran Shi,Yanbing Ning,Kun Lin,Yuqi Dong,Yan Zhang,Menghui He,Wanxia Huang,Shuaifeng Lou
The dynamic hysteresis of layered oxide cathodes intrinsically limits the performance of sodium-ion batteries under high-rate and low-temperature conditions. These limitations arise from unfavorable electronic configurations and valence band structures, including localized d-states, wide bandgaps, and weak orbital hybridization, all of which hinder electron transport and Na + migration. Overcoming these bottlenecks requires a shift away from empirical modifications to the deliberate engineering of electronic structure and band alignment. In this work, we propose an electronic-structure engineering strategy based on orbital hybridization and charge redistribution. High-valence W 6+ induces strong orbital hybridization with host 3d states, narrowing the bandgap and decreasing the charge-transfer barrier. Charge redistribution partially reduces adjacent Ni/Mn sites, increasing electronic conductivity and expanding Na⁺ diffusion channels. The modified cathode exhibits remarkable rate performance (96.2 mAh g −1 at 20 C) and excellent low-temperature capacity (91.0 mAh g −1 at −40 °C). This work establishes a mechanism-guided design approach that links orbital and electronic regulation to enhanced electrode kinetics, providing an attractive pathway for sodium-ion batteries under extreme conditions.
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DOI
高影响因子
Nano-Micro Letters
·
2026
·Vol. 18
·期 1
·295
·
IF 38.5
Zeng Li,Jiang Chenhui,Li Yuan,Yin Hao,Li Qichao,Liu Hezhou,Guo Yiping
A monolithic, structurally flexible, continuous Pb(Zr 0.52 Ti 0.48 )O 3 (PZT) piezoelectric fiber was innovatively fabricated through network architecture design.
The PZT framework well inherited the macro- and micro-structure of the mesh fabric, endowing the PZT-silicone composite material with high stretchability up to 220%.
The developed strain sensor exhibited both high stretchability (100%) and high sensitivity (39.57 mV kPa −1 ), thus enabling its application in subtle surface roughness perception and large-strain human motion monitoring.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Dong Chen,Jinhui Li,Lihan Zhang,Kuan Wang,Manling Sui,Pengfei Yan
Biphasic composite materials have been demonstrated to be effective in enhancing the structural stability and electrochemical performance of layered cathodes for sodium-ion batteries. Herein, based on the cationic potential methodology and co-doping strategy, we design a biphasic O3/P2 composite layered cathode (85NFMLCC, Na 0.85 Ca 0.02 Ni 0.2 Li 0.1 Fe 0.15 Co 0.05 Mn 0.5 O 2 ) and further integrate surface modification to achieve superior cycling performance, which is prepared by a simple one-pot solid state sintering method. Comprehensive structural characterizations reveal that the surface modification is realized by an inner Co-enriched layer and an outmost Ca-coating layer, which enables much improved rate capability and cycling stability simultaneously. In situ XRD confirms that biphasic design effectively suppresses the harmful phase transition during high voltage cycling, and the bilayer surface modification further enhances the cathode interfacial kinetics and robustness. The electrochemical tests demonstrated that 85NFMLCC exhibits a high specific capacity (136.7 mAhg −1 at 0.1C), superior cycling stability and rate capability at 2.0–4.3 V, 97.8 % capacity retention after 100 cycles at 0.1C and 84.5 % capacity retention after 800 cycles at 1C 2.0–4.0 V. This work demonstrates that biphasic composite with proper surface modification is a very promising design route toward high performance high voltage cathode material for sodium-ion batteries.
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产品关联
DOI
高影响因子
Crystals
·
2024
·Vol. 14
·期 1
·91
·
IF 2.4
Fan Zhang,Hua Hao,Minghe Cao,Zhonghua Yao,Shuai Fu,Hanxing Liu
Piezoelectric ceramics with excellent piezoelectric properties and a high Curie temperature are important for numerous electromechanical devices in a broad range of temperature environments. In this work, the relaxor ferroelectric Pb(Yb1/2Nb1/2)O3end member was selected to be introduced into a BiScO3-PbTiO3high-temperature piezoelectric ceramic to reduce the dielectric loss and improve the piezoelectric properties while slightly reducing the Curie temperature. The phase structure and dielectric, ferroelectric and piezoelectric properties of 0.025Pb(Yb1/2Nb1/2)O3-(0.975−x)BiScO3-xPbTiO3(0.60 ≤x≤ 0.63) ceramics were systematically analyzed, and the best electrical properties were observed in the morphotropic phase boundary regionx= 0.61 withd33= 370 pC/N,kp= 44%,Pr= 33.9 μC/cm2. Importantly, no significant depolarization was observed in thex= 0.61 ceramic from room temperature to 290 °C, demonstrating its good thermal stability and potential applications in a wide range of temperature environments.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）