Article
Physics, Applied
X. Chen, J. Yvonnet, H. S. Park, S. Yao
Summary: By numerical simulations and topology optimization, it is demonstrated that piezoelectric composites have the potential for significantly large apparent converse flexoelectric properties. Both converse and higher order electromechanical coupling effects contribute strongly to the flexoelectric response and properties of these composites.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Sara C. Mills, Eric A. Patterson, Margo L. Staruch
Summary: Dilutely doped ferroelectric materials exhibit unique behavior by introducing point defects, and the grain size of polycrystalline ferroelectric materials also plays a significant role in their properties.
FRONTIERS IN CHEMISTRY
(2023)
Article
Crystallography
Mu Song, Xiaoyuan Sun, Qiong Li, Hao Qian, Yunfei Liu, Yinong Lyu
Summary: In this work, lead-free piezoelectric ceramics with low hysteresis and superior electrostrictive coefficient features were designed by enhancing the electrostrictive effect and inhibiting hysteresis through phase transition around ambient temperature. The BT-30ST ceramics showed enhanced electrostrictive coefficient and low hysteresis, making them a prospective option for high sensitivity and high precision displacement actuators.
Article
Engineering, Electrical & Electronic
Ning Xu, Qi Liu, Jiahui Ma, Xuemeng Huo, Shuqi Yang, Yongping Pu
Summary: The addition of CuO improves the microstructure of BaTiO3, enhancing its dielectric properties and frequency stability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Energy & Fuels
Xiaoyu Jiang, Haoran Wang, Xiong Wang, Guoliang Yuan
Summary: Modifying traditional photocatalysts with silver nanoparticles can enhance the catalytic performance of BaTiO3, while combining piezoelectric potential and photocatalysis can greatly improve catalytic efficiency. The experimental results suggest that the enhanced synergistic catalytic mechanism proposed in this study can provide new insights for the development of high-efficient catalysts.
Article
Materials Science, Ceramics
Zhao Li, Chen-Bo-Wen Li, Hao-Cheng Thong, Yu-Qi Jiang, Jianchun Xu, Yanan Hao, Chao-Feng Wu, Zhongshang Dou, Ke Bi, Ke Wang
Summary: Lead zirconate titanate (PZT)-based piezoelectric ceramics with increasing average grain size were prepared and their properties were systematically investigated. The results showed that the electromechanical properties of the ceramics improved significantly with increasing grain size. In addition, the formation of non-180 degrees domain walls was suppressed in the fine-grain samples, while enhanced domain wall mobility was observed in the coarse-grain samples. This study confirmed that grain size engineering is an effective strategy for designing piezoelectric materials with excellent combination properties.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Multidisciplinary
Tianyi Zheng, Yingjie Yu, Yanyun Pang, Daixing Zhang, Yue Wang, Hongyang Zhao, Xu Zhang, Huijie Leng, Xiaoping Yang, Qing Cai
Summary: The reconstruction of the local electrical microenvironment is an effective strategy for bone regeneration. CMBT nanofibers composited with PLLA showed enhanced piezoelectricity, osteogenic activity, antibacterial, and anti-inflammatory activities, making them promising candidates for bone regeneration and function reconstruction.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Ceramics
Roxana-Elena Patru, Catalina Andreea Stanciu, Elena Mirabela Soare, Vasile-Adrian Surdu, Roxana Doina Trusca, Adrian Ionut Nicoara, Bogdan Stefan Vasile, Georgia Boni, Luminita Amarande, Nadejda Horchidan, Lavinia Petronela Curecheriu, Liliana Mitoseriu, Lucian Pintilie, Ioana Pintilie, Adelina-Carmen Ianculescu
Summary: Dense fine-grained Ba0.6Sr0.4TiO3 ceramics were prepared by sol-gel synthesized nanopowders and Spark Plasma Sintering consolidation. The grain size was reduced from 214 nm to 74 nm by changing the SPS parameters. Impedance Spectroscopy revealed diffuse ferroelectric-paraelectric phase transitions and low dielectric permittivity values (<1000) at the Curie temperature (T-C around 280 K) in all sintered ceramics. The reduction in grain size led to a gradual decrease in dielectric constant, tunability, polarization, and storage energy properties. Raman spectroscopy identified the presence of polar nanoclusters above T-C. The observed properties of Ba0.6Sr0.4TiO3 nanostructured ceramics were attributed to the interplay between grain size reduction, the role of low-permittivity grain boundaries, and the diffuse nature of the ferroelectric-to-paraelectric transformation.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Chaoqiong Zhu, Ziming Cai, Limin Guo, Longtu Li, Xiaohui Wang
Summary: Ultra-thin multilayer ceramic capacitors with nanograined BaTiO3-based ceramics of various grain sizes were prepared using a chemical coating method. It was found that an optimal grain size around 70 nm could achieve maximum discharge energy density under the synergy effect of breakdown strength and polarization. This study provides important guidance for the design of ultra-thin layer MLCCs by optimizing dielectric properties and energy storage performance.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Jing-Wei Chen, Arnab Pal, Bo-Hao Chen, Gautam Kumar, Subhodeep Chatterjee, Kiran Peringeth, Zong-Hong Lin, Michael H. H. Huang
Summary: This study successfully synthesizes various forms of BaTiO3, including octahedra, edge- and corner-truncated cubes, and cubes with four tunable sizes. Acetic acid treatment removes BaCO3 impurities, and Rietveld refinement confirms the crystal structure is tetragonal. The crystals' physical properties vary with their size and facet. BaTiO3 octahedra exhibit better performance than truncated cubes and cubes, especially in piezoelectric nanogenerators.
Article
Chemistry, Inorganic & Nuclear
Huiqi Zheng, Jin Chen, Meidan Que, Tai Yang, Zhikang Liu, Weihua Cai, Lingfu Yang, Xinwei Liu, Yanjun Li, Xiaofeng Yang, Yuzhao Ma, Gangqiang Zhu
Summary: The coupling of the piezoelectric effect and photocatalytic process promoted the separation of photogenerated carriers, thus increasing the piezo-photocatalytic activity. BaTiO3 nanoparticles were prepared on the Ti3C2Tx surface, and the obtained BaTiO3/Ti3C2Tx piezo-photocatalysts exhibited rapid electron transfer and a wide visible light response range. These results demonstrate that coupling piezoelectric and photocatalytic properties has broad application prospects in water pollution control.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Nanoscience & Nanotechnology
Farnaz Safi Samghabadi, Long Chang, Mohammad Khodadadi, Karen S. Martirosyan, Dmitri Litvinov
Summary: In this study, cobalt ferrite/barium titanate particulate composites with high magnetoelectric coefficients were synthesized using mechanical ball milling and high-temperature annealing. The use of 50 nm cubic BaTiO3 powder as a precursor resulted in a composite with a magnetoelectric coupling coefficient value as high as 4.3 mV/Oe cm. The Microstructure of these composites differs significantly from those synthesized using 200 nm tetragonal BaTiO3 powder, showing larger CoFe2O4 grains and better electrical insulation due to the surrounding BaTiO3 matrix.
Article
Chemistry, Physical
Shuang Yan, Zhenzhu Cao, Qiang Liu, Yanfang Gao, Hong Zhang, Guorong Li
Summary: Lead-free piezoelectric ceramics were prepared by conventional solid-reaction method. The coexistence of orthohombic and tetragonal phase near room temperature was confirmed at x = 0.025. The ceramic with x = 0.025 showed excellent electrical properties due to the presence of the polycrystalline phase transitions (PPT) effect.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Jingfeng Liu, Jintao Liu, Xuan Zhang, Xingang Liu, Chuhong Zhang
Summary: Piezoelectric sponges with functional 3D structures are successfully customized using a composite ink and freeze-drying method. These sponges exhibit excellent compression recovery and high relative sensitivity across a wide pressure range, making them suitable for manufacturing various piezoelectric pressure sensors and anisotropic bending sensors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Biomedical
Christian Polley, Thomas Distler, Caroline Scheufler, Rainer Detsch, Henrik Lund, Armin Springer, Dominik Schneidereit, Oliver Friedrich, Aldo R. Boccaccini, Hermann Seitz
Summary: Bone healing is a complex process that involves various factors such as mechanical, chemical, and electrical cues. Scientists worldwide aim to create synthetic biomaterials that combine these factors to achieve tailored and controlled tissue regeneration. This study presents a method using additive manufacturing techniques to create macroporous biomaterial scaffolds made of a piezoelectric and bioactive ceramic-crystallized glass composite. These scaffolds show suitable mechanical strength, bioactivity, and piezoelectric properties, making them promising candidates for bone tissue engineering.
MATERIALS TODAY BIO
(2023)
Article
Energy & Fuels
Linglei Xu, Qiangqiang Xie, Liang Zheng, Yongzhu Hua, Lihuan Shao, Jiadong Cui
Summary: With the increasing demand for electricity and concentrated consumption, this study proposes a Stackelberg game model between the distribution system operator and the load aggregator to optimize the subsidy time and improve the operating reliability and economy of the power distribution system.
Review
Chemistry, Multidisciplinary
Jiadong Cui, Yongxin Liu, Huibin Qin, Yongzhu Hua, Liang Zheng
Summary: This paper proposes a novel voltage control strategy based on air conditioners and an on-load tap changer (OLTC) to provide voltage regulation power for the distribution network. By regulating the operating power of the air conditioners, the occurrence of regulation lag by the OLTC is effectively avoided. The operating performance of voltage regulation potential of the air conditioners is evaluated using thermal and electrical models, and a voltage regulation strategy based on the regulation potential is formulated.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Ceramics
Wenbo Ye, Chenghao Zhu, Yiming Xiao, Xingzhi Bai, Peng Zheng, Jingji Zhang, Wangfeng Bai, Qiaolan Fan, Liang Zheng, Yang Zhang
Summary: The low dielectric breakdown strength and poor thermal stability of BiFeO3-based relaxor ferroelectric ceramics have hindered their actual pulse capacitor application. In this work, nanodomain-engineered and grain-engineered BiFeO3-BaTiO3-CaTiO3 relaxor ferroelectric ceramics were manufactured to solve these issues. The introduction of CaTiO3 led to the formation of nanoscale domains, resulting in temperature-insensitive dielectric response and almost hysteresis-free polarization field response. Moreover, the refinement of the grain size and the depression of the oxygen vacancy concentration greatly enhanced the dielectric breakdown strengths. As a result, the ceramics exhibited remarkable energy-storage performances, high recoverable energy density, high efficiency, outstanding thermal stability, ultrafast release time, and high power density, indicating their enormous potential for pulse capacitor applications.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Jikang Liu, Yuqin Ding, Chongyang Li, Wangfeng Bai, Peng Zheng, Shiting Wu, Jingji Zhang, Zhongbin Pan, Jiwei Zhai
Summary: A synergistic two-step optimization strategy is proposed to improve the recoverable energy storage density, efficiency, and temperature stability of Sr0.7Bi0.2TiO3 (SBT)-based relaxor ferroelectrics. The strategy involves composition optimization to induce high activity and ultrafine polar nanoregions, and a two-step sintering process to produce ultrasmall grain size and compact grain boundaries. Competitive SBT-based lead-free relaxor ferroelectrics with high performance in capacitive energy storage are achieved.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Xinliang Ge, Huan Li, Hui Zheng, Peng Zheng, Liang Zheng, Yang Zhang
Summary: In this study, NiMgCuZn ferrites with different Mg ion concentrations were prepared, and the effect of Mg ion content on the crystal structure, magnetic, and permeability properties was investigated. The results showed that the materials had high crystallinity, and the lattice constant increased with the Mg ion content. The saturation magnetization decreased, while the permeability and magnetic loss increased with the doping of Mg. Importantly, the Curie temperature of the ferrite decreased with the Mg ion content and met the requirements of tumor hyperthermia.
Article
Materials Science, Ceramics
Peixiaokan Si, Peng Zheng, Xinzhong Zhang, Chong Luo, Xiangting Zheng, Qiaolan Fan, Wangfeng Bai, Jingji Zhang, Liang Zheng, Yang Zhang
Summary: This study successfully modulates the ferroelectric polarization and relaxor behavior of Sr2NaNb5O15 ceramics by introducing Bi3+ and Ti4+ ions, resulting in excellent recoverable energy density and high efficiency. The co-doped ceramics show high current density and large power density.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Junpeng Wu, Shijun Dong, Huan Li, Hui Zheng, Qiong Wu, Peng Zheng, Liang Zheng
Summary: In this study, high-valence molybdenum (Mo6+) was doped into M-type hexagonal barium ferrite (BaFe12-xMoxO19) to improve its electromagnetic performance. The results showed that the Mo6+ doping concentration had a significant impact on the crystallographic structure, morphology, and electromagnetic properties of the material. The microwave absorption properties were notably improved by the doping Mo6+, demonstrating its potential application as an absorbing material.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Kaicheng Yu, Xinzhong Zhang, Wentao Zhong, Peng Zheng, Qiaolan Fan, Liang Zheng, Yang Zhang, Wangfeng Bai
Summary: A novel Bi-doped Sr2NaNb5O15-based relaxor ceramic system was designed in this work based on an A-site engineering strategy, achieving excellent energy storage density and energy storage efficiency by regulating the relaxor characteristics and boosting the breakdown strength.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Haili Cai, Lining Fan, Wei Chen, Hui Zheng, Xiaoxiao Guo, Peng Zheng, Liang Zheng, Yang Zhang
Summary: Iron carbide-functionalized porous carbon nano-composites are potential anode materials for lithium-ion batteries due to their good electrocatalytic performance, stable chemical properties, and reasonable cost-effectiveness. In this study, a Fe3C-functionalized 3D nitrogen-doped porous graphene nanocomposite (Fe3C/NPG) was synthesized using silk fibroin coordination with Fe ions. The Fe3C/NPG composite exhibited a distinct 3D porous structure, high doping levels of nitrogen atoms (approximately 10%), and well-dispersed Fe3C nanoparticles with strong interfacial bonding. It showed excellent cycling stability and rate performance as a LIB anode material at certain heating temperature and Fe ion concentration.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Yuzhe Lin, Ruifeng Wan, Peng Zheng, Zhihao Li, Yikai Wang, Qiaolan Fan, Liang Zheng, Yang Zhang, Wangfeng Bai
Summary: This study designs a Bi0.5N0.5TiO3-SrTiO3-based relaxor ferroelectric system with the heterostructure doping strategy, introducing Sr2NaNb5O15 phase. The small amount of SNN heterostructure doping effectively enhances the relaxor behavior and suppresses the remnant polarization, while maintaining a large maximum polarization. Furthermore, the introduction of the tungsten bronze ferroelectric phase significantly reduces the grain size and improves the electric breakdown strength. Ultimately, a remarkable energy storage density of 5.22 J/cm(3) and excellent efficiency of 93.87% are achieved under a low electric field, making the BNT-ST-xSNN ceramic system a promising choice for the dielectric energy storage field.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Jikang Liu, Chongyang Li, Wangfeng Bai, Yongjun Yuan, Peng Zheng, Qiaolan Fan, Shiting Wu, Jingji Zhang, Jiwei Zhai
Summary: This study reports the design of new lead-free quasi-linear relaxor ferroelectrics with local heterogeneous polarization configurations, including ultra-small and highly dynamic polar nanoregions with low energy barriers, local structure heterogeneity, and highly stable local structures. The designed relaxor exhibits delayed polarization saturation and minimized polarization switching hysteresis at a large breakdown electric field, delivering a large recoverable energy density, ultrahigh efficiency, and superior stabilities. This achievement bridges the gap between lead-free and lead-based dielectric ceramics and promotes the development of advanced capacitors.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Electrical & Electronic
Lining Fan, Wei Chen, Ke Zhou, Hui Zheng, Peng Zheng, Liang Zheng, Yang Zhang
Summary: Three-dimensional nitrogen-doped few-layer graphene sheets (3-D NFLGs) were prepared by combining a fullerene C60 precursor with a microwave excited nitrogen plasma process. The growth mechanism, morphology, and field emission properties of the synthesized 3-D NFLGs were studied.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yaxin Zhan, Zhangting Wu, Peiyu Zeng, Wenhui Wang, Yuan Jiang, Hui Zheng, Peng Zheng, Liang Zheng, Yang Zhang
Summary: In this study, p-i-n junction-based photodetectors were prepared using surface charge transfer doping in 2D van der Waals heterostructures, resulting in improved response time and photoresponsivity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Chenghao Zhu, Axiang Chen, Yang Liu, Peng Zheng, Wangfeng Bai, Qiaolan Fan, Liang Zheng, Yang Zhang
Summary: By introducing Ce and Cr ions to construct a pseudo-morphotropic phase boundary, the piezoelectric and ferroelectric properties of CBN ceramics are significantly optimized, while the oxygen vacancy concentration is suppressed, leading to improved resistivity and thermal stability.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Chongyang Li, Jikang Liu, Wangfeng Bai, Shiting Wu, Peng Zheng, Jingji Zhang, Zhongbin Pan, Jiwei Zhai
Summary: By introducing linear dielectric CaTiO3, this study achieved ultrahigh energy efficiency and high energy density in (Bi0.5Na0.5)TiO3 (BNT)-based relaxor ferroelectric ceramics. The designed ceramic also showed remarkable thermal endurance, frequency stability, cycling reliability, and superior discharge performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
