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.

在化学部（CHE）的支持下，以及分子细胞生物科学部（MCB）和刺激竞争性研究的既定计划的共同资助下，密西西比州立大学（MSU）将获得并安装一个氦回收系统，以支持MSU NMR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供应状况息息相关。由于氦气短缺，关键的科学基础设施处于危险之中，这使得依赖这些基础设施的美国研究人员面临失去竞争力的风险。核磁共振（NMR）光谱仪需要恒定的氦气供应，因为超导线圈会产生这些仪器所需的高磁场。这使得核磁共振设备非常容易受到氦市场波动的影响。通过氦回收系统，MSU NMR设施将回收其使用的几乎所有氦，确保其持续的可行性，并使其能够通过维持低用户费用为新用户提供服务。该团队还在为密歇根州立大学受欢迎的环境化学课程开发一个关于氦回收和稀缺性的教学单元。有关安装过程的信息将通过核磁共振设施的网站和YouTube频道传播。这将支持在密歇根州立大学等其他小型核磁共振设施中安装氦回收系统。拟议的氦回收设备将支持核磁共振设备，为整个区域的许多化学和生物研究项目服务。例子包括用于新型催化剂的有机金属和无机化学品的合成、C-H活化、CO2还原、氧化还原和有机发光二极管（OLED）。该设施还将支持生物分子功能，多功能材料和新型聚合物的研究。核磁共振是一种关键的使能技术，以了解反应机制和分子结构，和研究人员在整个密西西比，亚拉巴马，田纳西州，和路易斯安那州将受益于该设备及其提供的稳定性，以促进维持稳定的He供应，支持密西西比州立大学的区域重要NMR设施。该奖项反映了NSF的法定使命，并被认为值得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。