MRI: Acquisition of an Energy Dispersive Spectroscopy Unit for Research and Undergraduate Training in Geology, Chemistry, and Material Sciences and STEM Activities in Grades 7-12

MRI：购买能量色散光谱仪，用于地质学、化学、材料科学以及 7-12 年级 STEM 活动的研究和本科培训

• 批准号: 0820921
• 负责人: Roland Scal
• 金额: $ 6.05万
• 依托单位: CUNY Queensborough Community College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0820921&HistoricalAwards=false
• 关键词: MRI; Acquisition; Energy; Dispersive; Spectroscopy

0820921ScalFunds from this Major Research Instrumentation (MRI) Program grant will support acquisition of an energy dispersive spectroscopy X-ray microanalysis (EDS) unit to be interfaced with an existing scanning electron microscope system at CUNY. Funds are also requested for a carbon evaporator system which facilitates conductive sample coating. The system will be employed to 1) characterize unknown materials in sedimentary rocks using coupled elemental analysis to infer tectonic history; 2) to understand abrasion patterns, grain zonation and straigraphic mineral chemistry in troumalines, zircon and garnets; 3) to better understand pearl microstructure; to visualize nanostructured polyaniline-enzyme-metal particles used in highly specific biosensors; 4) to visualize polysiloxane networks used to stabilize gold, platinum and palladium nanoparticles; 5) to assess the activity, selectivity, and efficiency of nano-scale metal particle catalysts; and 6) to determine the ratio of metal to siloxane in Pd-colloids. The instrument will be housed in the Chemistry Department and jointly administered by the PIs. Broader impacts will be evident through a commitment to provide undergraduates with a strong foundation in science. CUNY-QCC has STEP and College Now programs to allure students at the critical age between high school and college. The College attracts students from a broad swath of ethnic backgrounds and advantages. The acquisition will be incorporated into the state?s ?Decade of Science,? and provide a resource for several departments.

来自主要研究仪器（MRI）计划的资金将支持购买一个能量色散光谱x射线微分析（EDS）单元，该单元将与CUNY现有的扫描电子显微镜系统相连接。还要求资金用于碳蒸发器系统，以促进导电样品涂层。该系统将用于1)利用耦合元素分析来推断构造历史，表征沉积岩中的未知物质；2)了解闪石、锆石和石榴石的磨损模式、颗粒分带和地层矿物化学；3)更好地了解珍珠微观结构；可视化用于高特异性生物传感器的纳米结构聚苯胺-酶-金属颗粒；4)可视化用于稳定金、铂和钯纳米粒子的聚硅氧烷网络；5)评价纳米级金属颗粒催化剂的活性、选择性和效率；6)测定钯胶体中金属与硅氧烷的比例。仪器将被安置在化学系，并由pi共同管理。通过致力于为本科生提供坚实的科学基础，将会产生更广泛的影响。CUNY-QCC有“STEP”和“College Now”项目，以吸引处于高中和大学之间关键年龄段的学生。学院吸引了来自不同种族背景和优势的学生。收购后会并入国家吗？年代?科学的十年？并为几个部门提供资源。