CAREER: Manufacturing of Mechanically Stable Nanoporous Ceramic Structures Via Selective Infiltration of Polymer Templates

职业：通过聚合物模板的选择性渗透制造机械稳定的纳米多孔陶瓷结构

• 批准号: 2045662
• 负责人: Diana Berman
• 金额: $ 50万
• 依托单位: University of North Texas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-03-01 至 2026-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2045662&HistoricalAwards=false
• 关键词: CAREER; Manufacturing; Mechanically; Stable; Nanoporous

This Faculty Early Career Development (CAREER) grant supports fundamental research to elucidate a new strategy of manufacturing nanoporous ceramic structures with controllable structure and composition and programmable mechanical stability. Nanoporous ceramic materials play a pivotal role in a broad range of emerging technologies, including sensing devices, water purification and filtration systems, and catalytic materials, which are important to national prosperity and welfare. Despite previous efforts on nanoscale patterning of inorganic materials, the limited accessibility to the available surfaces and interfaces remains a central problem in defining the functionality of the material systems. The ability to predict and control location-specific microstructures of materials and correlate this knowledge to their properties greatly extends current manufacturing capabilities for low-temperature processing of ceramics with high customizability, precision, and accuracy that are critically important for their potential use in engineering research and industrial applications. This research is complemented by offering new educational opportunities for undergraduate and graduate students in the areas of materials synthesis, mechanics, and surface science, with an emphasis on recruiting and retaining women and under-represented minorities for the next-generation manufacturing workforce. The projected outreach activities increase public awareness and readiness for advanced manufacturing capabilities and materials design concepts. The specific goal of this research is to discover processing-structure-property relationships in ceramic coatings and heterostructures by providing fundamental insights on the mechanism of liquid phase swelling-based infiltration of spin-coated polymer templates with inorganic precursors and defining the rules that control the resulting structure and, thus, access to various materials’ surfaces and interfaces. By in-situ monitoring of the swelling-induced evolution and infiltration of amphiphilic block copolymer templates using a quartz crystal microbalance and grazing-incidence small-angle x-ray scattering techniques, the study investigates the formation mechanisms of organic/inorganic surfaces and interfaces and unravels the guiding principles of ceramic material reconstruction. The structure knowledge that is thus revealed is correlated with the mechanical behavior of the coatings or films towards evaluating the influence of porosity on the stability of these materials and to quantify the damage tolerance of these structures under exposure to different environments and stresses. The accomplishment of the project objectives allows for creating a robust scalable manufacturing approach applicable to the large genome of nanoporous ceramics and other materials.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该学院早期职业发展（CAREER）资助支持基础研究，以阐明制造具有可控结构和成分以及可编程机械稳定性的纳米多孔陶瓷结构的新策略。纳米多孔陶瓷材料在广泛的新兴技术中发挥着关键作用，包括传感设备，水净化和过滤系统以及催化材料，这些技术对国家繁荣和福利至关重要。尽管先前在无机材料的纳米级图案化上做出了努力，但对可用表面和界面的有限可及性仍然是定义材料系统的功能性的核心问题。预测和控制材料的特定位置微观结构并将此知识与其特性相关联的能力极大地扩展了当前陶瓷低温加工的制造能力，具有高可定制性，精度和准确性，这对于它们在工程研究和工业应用中的潜在用途至关重要。这项研究的补充是为材料合成，力学和表面科学领域的本科生和研究生提供新的教育机会，重点是为下一代制造业劳动力招聘和留住女性和代表性不足的少数民族。预计的外联活动提高了公众对先进制造能力和材料设计概念的认识和准备。本研究的具体目标是发现陶瓷涂层和异质结构中的加工-结构-性能关系，方法是提供关于液相溶胀基无机前体旋涂聚合物模板渗透机制的基本见解，并定义控制所得结构的规则，从而进入各种材料的表面和界面。通过石英晶体微天平和掠入射小角X射线散射技术原位监测两亲性嵌段共聚物模板的溶胀诱导演化和渗透，研究了有机/无机表面和界面的形成机制，并揭示了陶瓷材料重建的指导原则。由此揭示的结构知识与涂层或膜的机械行为相关，以评估孔隙率对这些材料的稳定性的影响，并量化这些结构在暴露于不同环境和应力下的损伤容限。该项目目标的实现允许创建适用于纳米多孔陶瓷和其他材料的大基因组的强大的可扩展的制造方法。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Polymer infiltration synthesis of inorganic nanoporous coatings: Does polymer template affect their properties?

• DOI: 10.1016/j.surfcoat.2022.129107
• 发表时间: 2022-12-05
• 期刊: SURFACE & COATINGS TECHNOLOGY
• 影响因子: 5.4
• 作者: Omotosho, Khalil;Tran, John;Berman, Diana
• 通讯作者: Berman, Diana

Swelling-Assisted Sequential Infiltration Synthesis of Nanoporous ZnO Films with Highly Accessible Pores and Their Sensing Potential for Ethanol

• DOI: 10.1021/acsami.1c08225
• 发表时间: 2021-07-23
• 期刊: ACS APPLIED MATERIALS & INTERFACES
• 影响因子: 9.5
• 作者: Pleshek, Daniel;Tran, John;Berman, Diana
• 通讯作者: Berman, Diana

Self-Cleaning Highly Porous TiO2 Coating Designed by Swelling-Assisted Sequential Infiltration Synthesis (SIS) of a Block Copolymer Template

• DOI: 10.3390/polym16030308
• 发表时间: 2024-02-01
• 期刊: POLYMERS
• 影响因子: 5
• 作者: Omotosho，Khalil D.;Gurung，Vasanta;Berman，Diana
• 通讯作者: Berman，Diana

Porous but Mechanically Robust All-Inorganic Antireflective Coatings Synthesized using Polymers of Intrinsic Microporosity

• DOI: 10.1021/acsnano.2c05592
• 发表时间: 2022-09-01
• 期刊: ACS NANO
• 影响因子: 17.1
• 作者: Ji，Cheng;Zhang，Zhongbo;Shevchenko，Elena V.
• 通讯作者: Shevchenko，Elena V.