Adsorption Studies on Carbon Nanotubes Using NMR Spectroscopy

使用核磁共振波谱法对碳纳米管的吸附研究

• 批准号: 0107710
• 负责人: Tanja Pietrass
• 金额: $ 26.41万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-15 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0107710&HistoricalAwards=false
• 关键词: Adsorption; Studies; Carbon; Nanotubes; Using

The Advanced Materials Program in the Division of Chemistry and the Experimental Program to Stimulate Competitive Research in the Office of EPSCoR make this award to New Mexico Institute of Mining and Technology. With the award, Professor Tanja Pietrass will study the adsorption of hydrogen, oxygen, nitrous oxide and ammonia by carbon nanotubes using in situ solid-state NMR spectroscopy, exploiting the full complement of dipolar and quadrupolar coupling studies, chemical shifts and relaxation time measurements. Gas dynamics will be probed using two-dimensional exchange spectroscopy under variable temperature and gas density conditions. Results from these studies will be beneficial to understand the storage capacity, electronic structure and binding kinetics of different gases by carbon nanotubes. New Mexico Institute of Mining and Technology has a large underrepresented minority student body, mainly Hispanics and Native Americans, and this award will help in their research training and education. Absorption kinetics of different gases by carbon nanotubes will be studied using solid-state NMR spectroscopy, exploiting the full complement of dipolar and quadrupolar coupling studies, chemical shifts and relaxation time measurements. These studies will provide fundamental information about storage capacity, electronic structure and binding kinetics of carbon nanotubes. Results from this research could find applications in gas storage, e.g. hydrogen gas for fuel cells, gas separations, and as gas sensor materials. In addition, the research program will provide multidisciplinary education and training opportunities to undergraduate and graduate students in material and surface chemistries, and large number of under represented minorities attending the New Mexico Institute of Mining and Technology will benefit from these research activities.

化学部的先进材料计划和EPSCoR办公室的刺激竞争性研究的实验计划使新墨西哥州矿业与技术研究所获得了这个奖项。 凭借该奖项，Tanja Pietrass教授将使用原位固态NMR光谱研究碳纳米管对氢，氧，一氧化二氮和氨的吸附，利用偶极和四极耦合研究，化学位移和弛豫时间测量的全部补充。将在可变温度和气体密度条件下使用二维交换光谱来探测气体动力学。 这些研究结果将有助于理解碳纳米管的存储容量、电子结构和不同气体的结合动力学。 新墨西哥州矿业和技术学院有一个代表性不足的少数民族学生群体，主要是西班牙裔和美洲土著人，这个奖项将有助于他们的研究培训和教育。 碳纳米管对不同气体的吸收动力学将使用固态NMR光谱进行研究，利用偶极和四极耦合研究，化学位移和弛豫时间测量的全部补充。这些研究将为碳纳米管的存储容量、电子结构和结合动力学提供基础信息。这项研究的结果可以在气体储存中找到应用，例如用于燃料电池的氢气，气体分离以及作为气体传感器材料。此外，该研究计划将提供多学科教育和培训机会，本科生和研究生在材料和表面化学，以及大量的代表不足的少数民族参加采矿和技术的新墨西哥州研究所将受益于这些研究活动。