Equipment: Helium Recovery Equipment for a Regional NMR and EPR Laboratory at Wayne State University

设备：韦恩州立大学区域 NMR 和 EPR 实验室的氦气回收设备

• 批准号: 2303622
• 负责人: Eduard Chekmenev
• 金额: $ 21.94万
• 依托单位: Wayne 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: 2023-04-01 至 2026-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2303622&HistoricalAwards=false
• 关键词: Equipment; Helium; Recovery; Regional; NMR

With support from the Division of Chemistry, Professor Chekmenev at Wayne State University (WSU) is implementing a closed helium recovery system to sustain three shared research Nuclear Magnetic Resonance (NMR) instruments, one teaching NMR instrument, and a 7-Tesla Fourier Transform Ion Cyclotron Resonance Mass Spectrometer (FT-ICR MS). The instruments are used to identify and characterize molecules and are essential research tools. These instruments utilize high-field superconducting magnets that require liquid helium to maintain their fields. There is a global shortage of helium – a non-renewable natural resource – which has negatively impacted our ability to maintain these magnets. The helium recovery system will mitigate resulting uncertainty, enabling continuation of WSU research at the forefront of science in the fields of synthetic chemistry, biological chemistry, catalysis, food science, biomedical sciences and technology, microelectronics/sensing, and biomaterials.A closed-loop system will capture helium from the superconducting magnets associated with the NMR and mass spectrometry instruments in the WSU chemistry department facility. The collected gas will be temporarily stored in medium-pressure tanks before being liquified at a centralized station and then transferred to a separate mobile Dewar receptacle to be used for magnet fills. the recovery rate will be monitored and reported to NSF. A high rate of recovery is expected. The ability to recycle precious He to sustain the NMR and MS instruments at WSU Chemistry will help drive the recruitment and training of a diverse group of students as an integral part of the research and teaching missions of the department .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.

在化学系的支持下，韦恩州立大学 (WSU) 的 Chekmenev 教授正在实施封闭式氦气回收系统，以维持三台共享研究核磁共振 (NMR) 仪器、一台教学 NMR 仪器和一台 7-特斯拉傅里叶变换离子回旋共振质谱仪 (FT-ICR MS) 这些仪器用于识别和表征分子，是重要的研究工具，需要高场超导磁体。液氦是一种不可再生的自然资源，全球短缺，这对我们维护这些磁体的能力产生了负面影响，氦回收系统将减轻由此产生的不确定性，使华盛顿州立大学的研究能够继续处于前沿。合成化学、生物化学、催化、食品科学、生物医学科学与技术、微电子/传感和生物材料等领域的科学知识。闭环系统将从中捕获氦气与华盛顿州立大学化学系设施中的核磁共振和质谱仪器相关的超导磁体，收集到的气体将暂时储存在中压罐中，然后在中央站液化，然后转移到单独的移动杜瓦瓶容器中用于磁体。回收率将受到监测并向 NSF 报告 回收宝贵的 He 来维持 WSU 化学的 NMR 和 MS 仪器的能力将有助于推动人才的招募和培训。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。