Chemical imaging of sheets, surfaces, and interfaces

板材、表面和界面的化学成像

基本信息

批准号：
2129904
负责人：
Janice Musfeldt
金额：
$ 41.16万
依托单位：
University of Tennessee Knoxville
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-08-15 至 2025-07-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2129904&HistoricalAwards=false
关键词：
Chemical imaging sheets surfaces interfaces

项目摘要

Non-technical SummaryWith this project, which is supported by the Solid State and Materials Chemistry program in the Division of Materials Research, Professor Janice Musfeldt and her research group will explore the properties of material sheets, and material surfaces and interfaces using near field-infrared spectroscopy, and will invest in the education of a diverse group of young people at the University of Tennessee. Both initiatives will advance the use of chemical imaging spectroscopies at synchrotron facilities and contribute to important societal values and outcomes. A variety of material systems will be imaged including van der Waals, ferroic, and catalytic materials. These material sheets and textures are small in size - well below the diffraction limit of traditional infrared spectroscopies - which is why near-field imaging approaches such as those employed in this project have the potential to be transformative, also in unraveling important structure-property relationships. A broad range of educational, outreach, and service activities will also take place under the auspices of this National Science Foundation-funded program, especially in the areas of diversity, conference and workshop organization, and service to various national laboratories.Technical SummaryThe research, which is supported by the Solid State and Materials Chemistry program in the Division of Materials Research, employs synchrotron-based near-field infrared spectroscopy to image a variety of materials with different functionalities. The focus is on van der Waals, ferroic, and catalytic materials, as well as the structure-property relationships that can be unraveled in these systems. The goals are to: (i) explore symmetry and properties of magnetic and heavy chalcogenides and halides in the ultrathin limit, (ii) reveal interface dynamics in unusual settings such as at ferroelastic and ferroelectric domain walls, (iii) untangle chemical bonding heterogeneities and their relationship with catalytic behavior, and (iv) understand how these effects can be enhanced and controlled. What brings these efforts together is an overall interest in imaging heterogeneity in quantum materials and the opportunity to explore completely new types of light-matter interactions. Findings from this program will advance the development of theoretical approaches and of energy-related applications. This program also supports the interdisciplinary education of a diverse group of young researchers for future employment in academics, government laboratories, and industry in the area of advanced 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.

非技术摘要与该项目得到了材料研究部的固态和材料化学计划的支持，Janice Musfeldt教授及其研究小组将探索材料表的属性，以及近乎现场信号的材料表面和界面，并将投资于田纳西州大学的一群年轻人的教育。这两种举措均可提高同步设施中化学成像光谱的使用，并有助于重要的社会价值和结果。将成像各种材料系统，包括范德华，铁族和催化材料。这些材料片和纹理的尺寸很小 - 远低于传统红外光谱镜的衍射极限 - 这就是为什么诸如该项目中使用的近场成像方法具有变革性的原因，也有可能揭示重要的结构性 - 实质关系。在该国家科学基金会资助计划的主持下，尤其是在多样性，会议和研讨会组织的领域，以及针对各种国家实验室的服务的主持下，也将进行广泛的教育，宣传和服务活动。技术概述的研究支持了基于Synchrotrocrord ifforrared forvarrared formarred for a forvarrorrared forrrrrrar forrrrrrrrorrrarrorrrrrrar forrrrrrrar forrrrrrrr forrrrrrr forrrrrrr for a vorth，the the The The The The The The The The The The The The The Thithical研究。重点是范德华（Van der Waals），铁族和催化材料，以及在这些系统中可以揭示的结构质质关系。目标是：（i）探索在超薄极限内探索磁性和重型甲状腺素的对称性和特性，（ii）揭示在不寻常的环境中的界面动态，例如在铁弹性和铁电域壁，（iii）无抗化学键合性及其与催化性能以及（IV）的关系以及对这些效果的关系。将这些努力融合在一起的是，对量子材料中的异质性的成像异质性以及探索全新类型的轻质物质相互作用的机会。该计划的发现将推动理论方法和与能源相关的应用的发展。该计划还支持一群年轻研究人员的跨学科教育，以在高级材料领域的学者，政府实验室和工业领域的未来就业。这一奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的审查标准通过评估来通过评估来支持的。