Acquisition of an Atomic Resolution TEM for Advanced Analysis of Nanomaterials in the Environment, Agriculture and Technology (NEAT)

获取原子分辨率 TEM，用于环境、农业和技术中纳米材料的高级分析 (NEAT)

• 批准号: 0321356
• 负责人: Nigel Browning
• 金额: $ 140万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0321356&HistoricalAwards=false
• 关键词: Acquisition; Atomic; Resolution; TEM; Advanced

The rapidly developing world of nanoscience and engineering will revolutionize technology for a multitude of applications. While the possibilities for new devices, materials, or catalysts are virtually unlimited, the key to realizing them is a deep understanding of the interactions and properties of each of the nanoscale systems being developed. Only through such understanding can control, tuning, and reproducibility of structures and properties be achieved. The first step is to characterize all aspects of the structure, composition, and bonding that are responsible for the properties of the system. The ability to simultaneously characterize these features on the sub-nanometer scale lies uniquely within the realm of transmission electron microscopy (TEM). This research award will fund a field emission TEM instrument operating at 200kV that will also have extensive analytical capabilities. A key feature is the design and development of in situ stages that will allow the dynamics of nanoscale materials to be studied under various conditions of temperature, gas pressure, strain, and applied voltage. Specific research areas to be advanced by this grant will include investigations of catalysts, metal and ceramic glasses, electronic materials, and nanoparticles in host and biological systems. A strong connection with an NSF IGERT program will be made so that the next generation of microscopists can be trained on this pioneering approach for electron microscopy. Significant enhancement of the educational experience of underrepresented minorities will also be achieved. Collaborations with other academic and industrial laboratories will be an important part of the management of the facility.

快速发展的纳米科学和工程领域将为众多应用带来技术革命。虽然新设备、材料或催化剂的可能性几乎是无限的，但实现它们的关键是对每个正在开发的纳米级系统的相互作用和特性的深刻理解。只有通过这样的理解，才能实现结构和属性的控制、调整和再现。第一步是表征构成体系性质的结构、组成和键合的所有方面。在亚纳米尺度上同时表征这些特征的能力在透射电子显微镜（TEM）领域内是独一无二的。该研究奖将资助一个工作在200kV的场发射TEM仪器，该仪器还将具有广泛的分析能力。一个关键的特点是设计和开发的原位阶段，这将允许纳米级材料在各种温度、气压、应变和施加电压的条件下进行动态研究。这项资助将推进的具体研究领域包括催化剂、金属和陶瓷玻璃、电子材料以及宿主和生物系统中的纳米颗粒的研究。与美国国家科学基金会（NSF） IGERT项目的紧密联系将使下一代显微镜学家能够接受电子显微镜这一开创性方法的培训。代表人数不足的少数民族的教育经验也将大大提高。与其他学术和工业实验室的合作将是该设施管理的重要组成部分。