Equipment: Helium Recovery Equipment: Efficient Recycling and Reuse of Liquid Helium in the Mississippi State University NMR Facility

设备：氦回收设备：密西西比州立大学核磁共振设施中液氦的高效回收和再利用

• 批准号: 2304919
• 负责人: Nicholas Fitzkee
• 金额: $ 31.57万
• 依托单位: Mississippi 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: 2023-06-01 至 2026-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2304919&HistoricalAwards=false
• 关键词: Equipment; Helium; Recovery; Efficient; Recycling

With support from the Division of Chemistry (CHE), and co-funding from the Division of Molecular & Cellular Biosciences (MCB) and the Established Program to Stimulate Competitive Research, Mississippi State University (MSU) will acquire and install a helium recovery system to support the MSU NMR Facility. Helium is a non-renewable resource, and the scientific instrumentation that relies on liquid helium (LHe) is linked to the status of the global helium supply. As a result of helium shortages, critical scientific infrastructure is in jeopardy, which puts the US researchers who rely on that infrastructure at risk of losing their competitiveness. Nuclear Magnetic Resonance (NMR) spectrometers require a constant supply of helium because of the superconducting coils that generate the high magnetic fields needed for those instruments. This makes NMR facilities acutely susceptible to fluctuations in the helium market. With a helium recovery system, the MSU NMR Facility will recycle nearly all of the helium it uses, assuring its continued viability and allowing it to serve new users by maintaining low user fees. The team is also developing a teaching unit on helium recycling and scarcity for MSU’s popular Environmental Chemistry class. Information on the installation process will be disseminated via the NMR facility’s website and YouTube channel. This will support the installation of helium recovery systems in other small NMR facilities like that at MSU. The proposed helium recovery equipment will support NMR equipment serving numerous chemistry and biology research projects throughout the region. Examples include synthesis of organometallic and inorganic chemicals used in novel catalysts, C-H activation, CO2 reduction, photocatalysis, and organic light-emitting diodes (OLEDs). The facility will also support research on biomolecular function, multifunctional materials, and novel polymers. NMR is a critical enabling technology to understand reaction mechanisms and molecular structure, and researchers throughout Mississippi, Alabama, Tennessee, and Louisiana will benefit from this equipment and the stability it will provide in facilitating the maintenance of a steady He supply in support of the regionally important NMR facility at Mississippi State University.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.

在化学系 (CHE) 的支持下，在分子与细胞生物科学系 (MCB) 和刺激竞争性研究既定计划的共同资助下，密西西比州立大学 (MSU) 将购买并安装一套氦回收系统，以支持密歇根州立大学核磁共振设施 氦是一种不可再生资源，依赖液氦 (LHe) 的科学仪器与全球氦的状况息息相关。由于氦气短缺，关键的科学基础设施处于危险之中，这使得依赖该基础设施的美国研究人员面临失去竞争力的风险，因为超导性的核磁共振（NMR）光谱仪需要持续供应氦气。产生这些仪器所需的高磁场的线圈使得 NMR 设施极易受到氦气市场波动的影响。将回收几乎所有使用的氦气，确保其持续生存并通过维持较低的用户费用来服务新用户。该团队还在为密歇根州立大学受欢迎的环境化学信息课程开发一个关于氦气回收和稀缺性的教学单元。安装过程将通过 NMR 设施的网站和 YouTube 频道传播，这将支持在密歇根州立大学等其他小型 NMR 设施中安装氦回收系统。拟议的氦回收设备将支持 NMR 设备。该设施为整个地区的众多化学和生物学研究项目提供服务，包括用于新型催化剂、C-H 活化、二氧化碳还原、光催化和有机发光二极管 (OLED) 的有机金属和无机化学品的合成。核磁共振是了解整个反应机制和分子结构的关键技术，密西西比州、阿拉巴马州、田纳西州和路易斯安那州的研究人员将从该设备及其提供的稳定性中受益。促进维持稳定的 He 供应，以支持密西西比州立大学区域重要的 NMR 设施。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。