MRI: Acquisition of a Lab-Scale Instrument for X-ray Absorption Fine Structure

MRI：购买用于 X 射线吸收精细结构的实验室规模仪器

• 批准号: 2215769
• 负责人: Nicholas Brunelli
• 金额: $ 34.87万
• 依托单位: Ohio State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-01-01 至 2025-12-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2215769&HistoricalAwards=false
• 关键词: MRI; Acquisition; Lab; Scale; Instrument

This award will support the acquisition of a lab-scale instrument for X-ray Absorption Spectroscopy (XAS). XAS measurements are typically performed using specialized synchrotron X-ray sources, but recent advances have enabled XAS data to be collected using a local, lab-scale instrument. This is a game-changing advance that has the potential to accelerate materials discovery and innovation. XAS provides key information that is difficult to impossible to acquire using other common spectroscopic techniques. The instrument will be critical in characterizing (a) atomically precise catalysts, (b) high-performance electrocatalysts for CO2 conversion and synthesis of chemicals, (c) advanced batteries, (d) complex natural systems containing precious platinum group metals and rare earth elements, and (e) advanced electronic and magnetic materials. XAS characterization will provide key missing structural details that, when understood, will enable the development of next generation materials. A community of researchers at Ohio State, neighboring universities, and companies will have access to the instrument. The XAS data will accelerate material discovery to enable sustainable and energy efficient catalytic materials for removing CO2 from the atmosphere. The PI and the team will provide training, participate in outreach events, and incorporate the use of this instrument into curricular components to foster future generations of scientists. Overall, the instrument will have a broad impact on the scientific community at and around Ohio State.This project will acquire a lab-scale instrument for performing X-ray Absorption Spectroscopy (XAS), including X-ray Absorption Near Edge Spectroscopy (XANES) and Extended X-ray Absorption Fine Structure Spectroscopy (EXAFS). The instrument will be used to answer fundamental questions about synthesis-structure-function relationships for many different types of materials. This includes providing the critical and often missing characterization of bio-inspired catalytic materials containing paired catalytic sites as well as key insights into the redox properties of perovskites that are electrocatalysts for CO2 reduction or ammonia synthesis. Beyond catalysis, the instrument will provide critical insights on the coordination of platinum and other rare earth elements in geochemical materials to enable extraction of rare earth elements, to understand complex chemistry in diverse soil samples, and to provide a basis for waste remediation. It will also facilitate characterization of new electronic and magnetic materials that have the potential to enable room temperature superconductors as well as electrode and electrolyte structure in batteries and energy storage materials to overcome the current reliance on cobalt. Additionally, the X-ray Emission mode will enable structural characterization of model proteins that are being investigated as catalysts for small molecule activation. The instrument will help to characterize advanced electronic and magnetic materials that have the potential to enable room temperature superconductors. Overall, the lab-scale instrument will accelerate materials discovery.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.

该奖项将支持获取用于X射线吸收光谱（XAS）的实验室规模仪器。 XAS测量通常是使用专用同步加速器X射线源执行的，但是最近的进步已使XAS数据可以使用本地实验室尺度仪器收集。这是一种改变游戏规则的进步，有可能加速材料发现和创新。 XAS提供了使用其他常见光谱技术难以获取的关键信息。该仪器对于（a）原子上精确的催化剂，（b）用于化学品的二氧化碳转换和合成的高性能电催化剂至关重要。 XAS表征将提供关键的缺失结构细节，并在理解时将使下一代材料的开发。俄亥俄州立大学，邻近大学和公司的研究人员社区将可以使用该工具。 XAS数据将加速材料发现，以实现可持续和节能的催化材料，以从大气中去除CO2。 PI和团队将提供培训，参加外展活动，并将其使用该工具纳入课程组件中，以培养子孙后代的科学家。总体而言，该仪器将对俄亥俄州及其周边地区的科学界产生广泛的影响。该项目将购买一种实验室规模的仪器，用于执行X射线吸收光谱（XAS），包括边缘光谱（XANES）（XANES）和扩展的X射线吸收良好的X射线吸收良好的X射线吸收量。该仪器将用于回答有关许多不同类型材料的合成结构功能关系的基本问题。这包括提供包含配对催化位点的生物启发的催化材料的关键且经常缺失的表征，以及对钙钛矿的氧化还原特性的关键见解，这些介质特性是二氧化碳合成或氨合成的电催化剂。除催化外，该仪器还将为地球化学材料中铂和其他稀土元素的配位提供关键见解，以提取稀土元素，了解各种土壤样品中的复杂化学性质，并为废物恢复提供基础。它还将促进具有新的电子和磁性材料的表征，这些电子和磁性材料有可能使室温超导体以及电池和储能材料中的电极和电解质结构以及电极结构来克服当前对钴的依赖。此外，X射线发射模式将实现模型蛋白的结构表征，这些蛋白被研究为小分子激活的催化剂。该仪器将有助于表征有可能启用室温超导体的高级电子和磁性材料。总体而言，实验室规模的工具将加速材料发现。该奖项反映了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影响的评论标准来评估值得支持的。