PLoS One
·
2025
·Vol. 20
·期 5
·e0319802
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IF 2.6
Xiong Dien,Nurulazlina Ramli,Tzer Hwai Gilbert Thio,Cheng Linfeng,Zhang Lin,Yuan Jiang,Yang Zhuanqing
Among various emerging energy technologies, triboelectric nanogenerators (TENGs) have garnered significant attention owing to their ability to convert environmental mechanical energy into electrical energy through the triboelectric effect and electrostatic induction. However, there are some problems with optimizing the electrical output and conversion efficiency of TENGs. This paper presents a high-performance TENG enhanced with BaTiO₃ nanowires(BTONWs) using electrospinning technology. PVDF was doped with BTONWs to fabricate TENGs with high flexibility and efficient energy conversion. BaTiO₃ and PVDF all exhibited inherent properties and triboelectric properties, maximizing the conversion of pressure into electrical energy output. This integration effectively enhances the conversion power and provides a continuous energy supply. Experimental results show that the fabricated TENGs achieved a current and voltage of 12 μA and 280 V, respectively, with a maximum power density of 1.45 W/m 2 at a load resistance of 90 MΩ. In addition, the performance of the TENGs was tested using a calculator, timer, and LED lights. By connecting to a simple external circuit and continuously tapping the TENG, the devices functioned normally, demonstrating that the TENG can constantly and stably output electrical energy by continuously collecting mechanical energy to power microgenerators. This work may significantly contribute to developing energy harvesting, wearable devices, and micropower sources.
研究领域:
能源材料科学
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纳米技术
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DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2025
·Vol. 46
·期 2
·117852
·
IF 6.2
Ying Zheng,Yifei Liang,Huanhuan Li,Quan Li,Yan Yan,Hua Tan,Haibo Zhang,Shenglin Jiang,Gang Liu
Electrocaloric cooling, a solid-state refrigeration technology utilizing the electrocaloric effect (ECE), enables miniaturized cooling systems. However, its practical application is constrained by limited adiabatic temperature change (Δ T ), restricted operating temperature span ( T span ), and the fact that peak performance typically occurs at elevated temperatures. To overcome this, (1-x)Ba₀.₇₆Sr₀.₂₄TiO₃-xCa(Ti₀.₉Sn₀.₁)O₃ (BST-CS) lead-free ferroelectric ceramics were synthesized via solid-state reaction, enhancing Δ T and T span through multi-ion doping. XRD and Raman spectroscopy confirmed tetragonal (T) and pseudo-cubic (PC) phase coexistence, with the PC phase increasing with doping. Temperature-dependent Raman and dielectric spectra revealed a tetragonal-cubic transition near the Curie temperature, contributing to the ECE. The optimized composition ( x = 0.14) achieved Δ T = 1.74 K and T span = 52 K (40–90°C, Δ T ≥ 80 % of Δ T max ) under 50 kV·cm −1 . Phase coexistence lowers polarization barriers, while grain refinement improves breakdown strength. This work advances eco-friendly microelectronics cooling by balancing performance and practicality.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Zhenji Zhou,Miaomiao Zhang,Shaoyun Huang,Zhong Li,Xiaoqing Guan,Yafeng Deng
Compared to traditional magnetic wave-absorbing materials, paramagnetic electromagnetic wave-absorbing materials have garnered significant attention in microwave absorption due to their advantages, including low density, wide bandwidth, and thin structure. The polarization mechanism and dielectric loss are key factors determining the electromagnetic absorption performance of these materials. In this study, BaTiO₃@MnO₂/MWCNTs (BTMC) hybrid composites were prepared using a two-step solvothermal method, and the electromagnetic absorption performance was optimized by adjusting the MWCNTs loading in the absorber and the absorber-to-paraffin ratio. The synergistic effect of BaTiO₃'s excellent dielectric properties, the anisotropy of MnO₂ with different morphologies (urchin-like α-MnO₂ nanosheets and rod-like β-MnO₂), and the high conductivity of MWCNTs enhanced the electromagnetic absorption capacity of the BTMC hybrid composite. The study showed that when the paraffin wax-to-absorber ratio was 7:3 and the MWCNT loading in the absorber was 10 wt%, the composite material (BTMC-10) achieved a reflection loss (RL min ) of −74.06 dB and an effective absorption bandwidth of 1.27 GHz at a thickness of 4.75 mm. This provides a new research direction for developing high-performance, lightweight, broadband, and efficient paramagnetic electromagnetic wave-absorbing materials, demonstrating their potential applications in the microwave field.
研究领域:
材料科学
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电磁学
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纳米技术
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微波工程
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DOI
高影响因子
Advanced Optical Materials
·
2025
·
IF 7.2
Wenbin Zhang,Jiawen Wang,Le Wang,Jun Wan,Gongxun Bai,Shiqing Xu,Liang Chen
Upconversion emissions from lanthanide ions have unparalleled advantages in the field of temperature sensing and information encryption. Despite extensive research on temperature sensing probes, developing highly sensitive temperature measurement applications still poses a significant challenge. This study utilizes lanthanide ions doped BaTiO₃ as the foundational material to develop a fiber optic probe with enhanced temperature sensitivity. The optical temperature-sensing capabilities are assessed based on the intensity ratio of various energy levels in BaTiO₃: Yb/Tm/Er phosphors. Notably, the non-thermal coupling energy level between Tm and Er demonstrates the highest sensitivity, achieving a maximum relative sensitivity of 2.70% K⁻¹ at 303 K. By leveraging the temperature-dependent color change of the material, a large-capacity photonic barcode for temperature information storage and encrypted transmission is developed, thereby expanding the potential applications of temperature monitoring.
研究领域:
材料科学
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光学工程
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传感技术
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DOI
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Yingzhi Meng,Zhaojie Wang,Xiang Niu,Yuleng Jiang,Peng Nong,Silin Tang,Jiyang Xie,Wanbiao Hu,Dingyuan Wang,Biaolin Peng,Shengguo Lu,Laijun Liu
The development of high-performance electrocaloric effect (ECE) is of great importance for local refrigeration (such as chip and wearable electronics cooling, etc.). However, how to simultaneously achieving both a large ECE and a wide working temperature range near the room temperature are long-term challenges for lead-free ceramics. Herein, we report a novel lead-free ceramic with a high-performance ECE. Phase coexistence and optimized ferroelectric domain configuration and ultra-fine grains were constructed by {Nb 5+ , In 3+ } co-doping in B 0.9 Ca 0.1 TiO 3 ceramics near the room temperature. Ultimately, an ultrahigh ECE of 3.0 K and a wide working temperature range of 97 K are obtained near the room temperature in the composition (B 0.9 Ca 0.1 Ti 0.89 (Nb 0.5 In 0.5 ) 0.11 O 3 ). Furthermore, the origin of the high ECE performance was elucidated by the microstructures characterized using piezoresponse force microscopy (PFM) and atomic-resolution HAADF-STEM, and the dielectric and ferroelectric properties. This work provides an innovative approach for achieving high-performance ECE.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Siyu Chen,Congcong Hao,Mingzhe Cai,Shuaining Cheng,Zhongxin Wang,Ao Wang,Teng Wang,Junbiao Chen,Chenyang Xue
Using PAN as the substrate, a uniform and dense nanofiber membrane was prepared via electrospinning. It features structural stability, lightweight flexibility, and compatibility with sensor integration without compromising racquet performance. • The component design aligns with the principles of functional membrane modification. Doping MXene and PDA@BaTiO₃ into the PAN substrate achieves synergistic enhancement, with 130 mg identified as the optimal doping concentration, providing a basis for membrane performance optimization. • The membrane exhibits outstanding performance: sensors based on the PAN substrate membrane demonstrate a sensitivity of 13.74 V/N and a response time of 1.2 ms. At 10 Hz and 1.5 N, the output voltage reaches 78.42 V, enabling real-time sensing and aligning with the multifunctional application focus in membrane science. • The PAN-based piezoelectric membrane showed no damage or performance degradation after 5000 cycles, meeting long-term usage requirements and highlighting the reliability of functional membrane applications. Accurate capture of table tennis stroke data provides crucial support for personalized training and skill enhancement. However, existing visual monitoring systems struggle to simultaneously detect stroke force and impact location due to interference from ambient lighting and shooting angles, creating a core bottleneck in intelligent table tennis training. To this end, this study innovatively proposes an integrated flexible piezoelectric sensor solution. Utilizing polyacrylonitrile (PAN) as the substrate, a PAN/MXene/PDA@BaTiO₃ piezoelectric composite film was prepared via electrospinning technology. An integrated design was adopted, where an 8-channel piezoelectric sensor array was constructed on the front side of the racket, and a signal acquisition and wireless transmission module were integrated on the back side, enabling real-time and accurate capture and transmission of hitting signals. Experimental results indicate that the composite membrane exhibits optimal piezoelectric performance at a PDA@BaTiO₃ doping concentration of 130 mg, achieving a sensitivity of 13.74 V/N with a response time of only 1.2 ms. It maintains excellent mechanical stability even after 5000 cycles of load testing. The integrated racket demonstrated outstanding dynamic sensing capabilities in both ball-bouncing and rally tests. This research not only provides a novel technical approach for table tennis training but also lays a technological foundation for flexible sensing technology in the field of smart sports. Download: Download high-res image (128KB) Download: Download full-size image
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高影响因子
Nano Energy
·
2021
·
IF 17.881
Rui Li,Guoqiang Zhang,Yingtao Wang,Zhangwen Lin,Chuanxin He,Yongliang Li,Xiangzhong Ren,Peixin Zhang,Hongwei Mi
Acceleration of reaction kinetics is urgently pursued for high-rate sodium ion batteries, while the utilization of ferroelectric and piezoelectric effect to form local micro electric field to facilitate ion transport has rarely been reported. Herein, a coherent tin oxide/barium titanate heterostructure encapsulated inside nitrogen-doped carbon nanofibers (SnO 2 /BaTiO 3 @NCNF) is introduced as sodium ion battery anode, exhibiting high capacity retention (82% over 2000 cycles at 2 A g 1 ) and stunning long-term cyclability (183.4 mAh g 1 after 10,000 cycles at 5 A g 1 ). The local potential produced by piezoelectric and ferroelectric effect of BaTiO 3 (BTO) can boost sodium ion diffusion kinetics and promote rate performance of SnO 2 anode. The piezoelectric effect is initiated from exploiting the drawback of volume expansion of SnO 2 , while the ferroelectric effect is originated from the charge separation of polarized BTO particles under external electric field. Such principle is instructive for alloying-type and convention-type anodes of alkali-ion batteries.
研究领域:
材料科学
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电化学
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能源存储
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纳米材料
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固态物理
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电池技术
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Junqin Mao,Heng Zheng,Qiuyu Zeng,Yutong Zhang,Guoyu Lv
In this study, a composite ceramic material combining cerium-doped bioactive glass (CeBG) and barium titanate (BaTiO₃) was developed to harness the synergistic effects of antioxidant properties and piezoelectric responsiveness, thereby enhancing the repair of load-bearing bone defects. CeBG-BaTiO₃ composites with varying CeBG doping concentrations (5 % and 15 %) were fabricated via high-temperature sintering. The ceramics were studied by piezoelectric constants (d 33 ), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and Vichers hardness. In vitro simulation of catalase activity, cytocompatibility, hemocompatibility assay and DPPH radical scavenging assay were selected for biocompatibility and antioxidant capacity. 15 % CeBG-BaTiO₃ ceramic with d 33 of 1.6 pC/N has better densification, crystallinity and mechanical property. CeBG-BaTiO 3 ceramics have favorable biological performance and exhibit increased antioxidant properties with more CeBG.
研究领域:
生物材料学
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骨科医学
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材料科学
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DOI
高影响因子
Nano Energy
·
2022
·
IF 19.069
Peiru Zhou,Zhipeng Zheng,Binquan Wang,Yiping Guo
Hardness or brittleness limits the broad applications of currently available high-performance piezoelectric sensors in emerging fields like human-machine interface and wearable electronics , while existing technologies for fabricating flexible piezoelectric sensors often require high-temperature sintering or complex processes. Here, we reported flexible piezoelectric sensors based on 10 nm BaTiO 3 nanocubes self-assembled on glass fiber fabric (GFF). The simple self-assembly process avoids high temperature sintering process which can well maintain the mechanical performance of GFF. Owing to the superior piezoelectric performance of BaTiO 3 nanocubes and robust mechanical properties of GFF, the integrally fabricated flexible piezoelectric sensors achieved high sensitivity (101.09 nA kPa −1 and 3.31 V kPa −1 in the low pressure range of 0–10 N) and short response time (19 ms). The sensors can intelligently identify handwriting or recognize the user of keyboard, and the initially collected electrical signals are essentially the same as those after 3000 bending cycles. This work provides a novel self-assembly process to develop fabric-based flexible electronics, which promotes the development of self-powered piezoelectric sensors and creates advancements in human-machine interfaces.
研究领域:
材料科学
·
电子工程
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Tianyi Zhang,Bo Yang,Ming Hao,Xiaodong Hu,Yanbo Liu,Xiaoxiao Wang
Flexible piezoelectric nanogenerators (PENGs) are emerging as sustainable power sources for self-charging wearable electronic devices due to their capability to harvest mechanical energy from the environment. Here, we have developed a high-output flexible PENGs based on electrospun composite nanofibers involving poly(vinylidene fluoride) (PVDF), barium titanate modified by dopamine hydrochloride (PDA@BTO) with an enhanced electroactive phase. On addition of 3 wt % PDA@BTO nanoparticles, the electroactive β-phase of the PVDF is found to be intensified to ∼88.05% as account of the synergistic interfacial interaction between the PDA@BTO nanoparticles and the ferroelectric host polymer substrate on electrospinning. The introduction of carbon black (CB) promotes piezoelectric charge transfer and increases output power. The PBTO/CB/PVDF composite nanofibers delivered the highest V OC of 55 V and the optimal I SC 3.1 μA with 3% PBTO and 1% CB. The fabricated PENG based PBTO/CB/PVDF composite nanofibers successfully charged capacitors with capacities of 0.1 μF, 0.33 μF, and 1 μF to voltages of 1.9 V, 3.2 V, and 10 V within 400 s, respectively. The device has response time of 0.1 s and the d 33 piezoelectric constant of 1.7 pC/N. The piezoelectric devices exhibited minimal variation in voltage and excellent stability over 900 cycles and the prepared piezoelectric device can light up to 20 LEDs. The potential of the piezoelectric composite nanofiber membranes for assembling mechanical energy collectors and piezoelectric sensors was demonstrated.
研究领域:
材料科学
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能源工程
·
传感器技术
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Feng Wang,Heng Yi,lipeng Zhong,Lu Tian,Jiahui Liu,She Chen,Qiuqin Sun,xincheng zhang
Gas-solid interfaces are among the most vulnerable regions in gas-insulated power equipment. Electric-field-assisted stereolithography (SLA) can induce the redistribution of high-permittivity fillers to form graded structures, thereby tailoring dielectric properties and interfacial electric-field distributions. However, the relationships among driving parameters, particle redistribution, surface charge dissipation, and discharge characteristics remain insufficiently understood. In this study, BaTiO₃/photocurable resin composites were fabricated, and the effects of filler volume fraction, driving voltage, and electric-field application time on particle distribution, dielectric properties, surface potential decay, and interfacial discharge characteristics were investigated. Increasing the driving voltage and application time enhanced the spatial non-uniformity of the BaTiO₃ particles, increased the relative permittivity, accelerated surface potential decay, increased the surface flashover voltage and partial discharge inception voltage (PDIV), and reduced partial discharge activity. For the 10 and 20 vol% composites, the maximum field strengths under the strongest assumed permittivity gradient were approximately 2.98% and 2.73% lower than those of the corresponding homogeneous cases, respectively.Compared with the 400 V and 1 min condition, the relative permittivity, surface flashover voltage, and PDIV increased by approximately 12.7%, 28.7%, and 65.6%, respectively, at 1200 V and 30 min. Under the same driving condition, the surface potential of the 10 vol% composite decayed by approximately 91.7% within 90 s. These results indicate that electric-field-induced particle redistribution can improve gas-solid interfacial discharge characteristics. The dielectric non-uniformity associated with particle redistribution may regulate the interfacial electric-field distribution and contribute to the observed improvements. Download: Download high-res image (266KB) Download: Download full-size image
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Ruida Cao,Long Yang,Wenbo Hu,Biao Dong,Hongwei Song,Lin Xu
Underwater communication using triboelectric nanogenerators (TENGs) offers key benefits such as independence from external power sources and immunity to water conditions, but faces challenges like short transmission range and single-mode operation. This study presents a flexible, bifunctional Janus film as a high-performance TENG for long-distance underwater signal transmission. The PEDOT:PSS-doped charge-generating layer minimizes charge dissipation, while the PEDOT:PSS and BaTiO₃ enriched charge-trapping layer enhances retention, ensuring robust performance in both contact and non-contact modes. Dual-mode transmission supports underwater tasks such as wireless switching, communication, charging, and gesture recognition with 94.84% accuracy. Remarkably, gesture signals transmitted over 200 m through a water pipe set a record for Maxwell's displacement current-based communication. Additionally, a smart rescue system demonstrates the non-contact mode's ability to self-power SOS signal transmission through water pipes in emergency scenarios, unaffected by water quality or pipe shape. This work expands TENG applications in self-powered, long-range underwater communication.
研究领域:
能量收集
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水下无线通信
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柔性电子学
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自供能传感器
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人机交互
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DOI
高影响因子
危险品化学品经营许可证（带存储）