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MRI: Acquisition of a Field-Emission Scanning Electron Microscope to Enhance Multidisciplinary Research and Education

MRI：购买场发射扫描电子显微镜以加强多学科研究和教育

基本信息

批准号：
1725491
负责人：
Michelle Personick
金额：
$ 20.23万
依托单位：
Wesleyan University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-08-01 至 2020-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1725491&HistoricalAwards=false
关键词：
MRI Acquisition Field Emission Scanning

项目摘要

This award is supported by the Major Research Instrumentation (MRI) and the Chemistry Research Instrumentation Programs. Professor Michelle Personick from Wesleyan University and colleagues are acquiring a field emission scanning electron microscope (FE-SEM). The instrument focuses a beam of electrons at a sample. The electrons interact with the sample to produce an image of the material. The SEM is a workhorse tool in many fields which study the composition and structure of materials. The research enabled by the FE-SEM addresses fundamental societal issues and broad ranging questions involving the sustainable production of chemicals and energy, the origin of the Earth's oceans, and the paleo-carbon dioxide concentration of the atmosphere. The FE-SEM is integrated into six courses, in line with Wesleyan's commitment to the training of undergraduate students, even those who do not participate in faculty research. The instrument is also made available for use by faculty from surrounding primarily undergraduate institutions. This field emission scanning electron microscope enhances research and education at all levels. It impacts research on the use of bimetallic nanoparticles for sustainable catalysis and the study of charge carrier transport in nanomaterials. The instrumentation is also used in searching for water on the moon and Mars, investigating mineralogy of minerals relevant to Mars, and reconstructing paleo-atmospheric carbon dioxide levels. The microscope is used by researchers studying micropaleontology as well as exploring fault processes and earthquake mechanics. In addition, this field emission scanning electron microscope is used in the analysis of Antarctic marine sediments - exploring sediment geochemistry and diagenesis.

该奖项由主要研究仪器（MRI）和化学研究仪器项目支持。美国卫斯理大学的Michelle Personick教授及其同事正在获得一台场发射扫描电子显微镜（FE-SEM）。该仪器将电子束聚焦在样品上。电子与样品相互作用，产生材料的图像。扫描电镜是研究材料组成和结构的重要工具。由FE-SEM实现的研究解决了基本的社会问题和广泛的问题，涉及化学品和能源的可持续生产，地球海洋的起源，以及大气的古二氧化碳浓度。FE-SEM被整合到六门课程中，这符合卫斯理大学对培养本科生的承诺，即使是那些不参与教师研究的本科生。该仪器也可供周围主要本科院校的教师使用。这种场发射扫描电子显微镜增强了各级的研究和教育。它影响了双金属纳米粒子在可持续催化中的应用以及纳米材料中载流子输运的研究。该仪器还用于在月球和火星上寻找水，调查与火星有关的矿物矿物学，以及重建古大气中的二氧化碳水平。该显微镜用于研究微古生物学以及探索断层过程和地震力学。此外，将该场发射扫描电镜应用于南极海相沉积物分析，探索沉积物地球化学和成岩作用。