Processing of Smart Porous Electro-Ceramic Transducers - ProSPECT

智能多孔电陶瓷换能器的加工 - ProSPECT

• 批准号: EP/X023265/1
• 负责人: Christopher Bowen
• 金额: $ 273.29万
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX023265%2F1
• 关键词: Processing; Smart; Porous; Electro; Ceramic

Ferroelectrics are highly polar materials that generate electrical charge in response to a change in mechanical stress or temperature. These properties make them exceptional materials for piezoelectric pressure sensors, accelerometers, SONAR, vibration energy harvesters, and pyroelectric thermal detectors. While porosity in these materials is currently viewed as a defect, I will establish that porosity can achieve a step-change in performance to produce next generation materials for sensors, SONAR, and energy harvesting. New modelling tools will inform how the pore structure can enhance the mechanical, thermal, and dielectric properties and modify the internal electric field and domain structure to enable the design of porous ferroelectrics with properties that are specifically tailored to each application. To create ferroelectric materials with the required pore structure, new manufacturing processes based on freeze-casting will deliver porous materials, multi- functional composites, and textured crystals with unprecedented control over pore structure and properties. I will also explore new and disruptive applications that to exploit the unique properties of porous ferroelectric materials, where ferroelectric charges generated by thermal or mechanical loads will be used for hydrogen production by water splitting or remove pollutants/bacteria for water purification. My vision is to integrate the new modelling tools and manufacturing methods to pioneer the use of advanced porous ferroelectrics in addressing important high-risk and high-gain global research challenges in the areas of sensing, harvesting, hydrogen generation, water treatment, and beyond.

铁电基因是高度极性材料，可响应机械应力或温度的变化而产生电荷。这些特性使其成为压电压力传感器，加速度计，声纳，振动能量收割机和pyroelectric热探测器的特殊材料。尽管目前将这些材料的孔隙率视为缺陷，但我将确定孔隙率可以实现性能的逐步变化，以生产传感器，声纳和能量收集的下一代材料。新的建模工具将告知孔结构如何增强机械，热和电介质特性，并修改内部电场和域结构，从而使多孔铁电的设计具有专门针对每个应用程序量身定制的特性。为了创建具有所需孔结构的铁电材料，基于冰冻铸造的新制造过程将提供多孔材料，多功能复合材料以及对孔结构和特性进行前所未有的控制的纹理晶体。我还将探索新的和破坏性的应用，以利用多孔铁电材料的独特性能，其中由热或机械负载产生的铁电荷将用于通过水分分裂或去除污染物/细菌进行水纯化而生产氢。我的愿景是整合新的建模工具和制造方法，以开拓先进的多孔铁电特性，以应对感应，收获，氢生成，水处理以及其他地区的重要高风险和高增强全球研究挑战。

项目成果

Highly Flexible, High-Performance, and Stretchable Piezoelectric Sensor Based on a Hierarchical Droplet-Shaped Ceramics with Enhanced Damage Tolerance.

基于分层水滴形陶瓷的高柔性、高性能、可拉伸压电传感器，具有增强的损伤容限。

• DOI: 10.1002/adma.202311624
• 发表时间: 2024
• 期刊: Advanced materials (Deerfield Beach, Fla.)
• 作者: Xu Q

Plasmonic-Pyroelectric Materials and Structures

• DOI: 10.1002/adfm.202312245
• 发表时间: 2024-01-15
• 期刊: ADVANCED FUNCTIONAL MATERIALS
• 影响因子: 19
• 作者: Wang，Qingping;Bowen，Chris R.;Valev，Ventsislav K.
• 通讯作者: Valev，Ventsislav K.

A comprehensive energy flow model for piezoelectric energy harvesters: understanding the relationships between material properties and power output

• DOI: 10.1016/j.mtener.2023.101396
• 发表时间: 2023-08
• 期刊: Materials Today Energy
• 影响因子: 9.3
• 作者: Zihe Li;J. Roscow;H. Khanbareh;John Taylor;Geoffrey Haswell;C. Bowen

Energy Harvesting from Water Flow by Using Piezoelectric Materials

• DOI: 10.1002/aesr.202300235
• 发表时间: 2024-01
• 期刊: Advanced Energy and Sustainability Research
• 作者: Zihe Li;J. Roscow;H. Khanbareh;Geoffrey Haswell;Chris Bowen