MRI: Acquisition of an Advanced X-Ray Photoelectron Spectroscopy for Materials Research

主要研究者：Nguyen，Trung V.提案：1429727标题：MRI：收购先进的X射线光电子能谱仪用于材料研究重要性具有更先进功能的X射线光电子能谱仪（XPS）系统将提高KU以及堪萨斯和邻近州的其他机构的研究能力和STEM人力资源开发。学生，教育工作者和研究人员从地方和区域社区学院和机构的代表比例高的代表性不足的群体将被联系，并鼓励申请免费使用新的工具。领先的研究设施和广泛的访问政策将有助于招聘高质量的教师和学生，包括那些来自代表性不足的群体和/或来自农村堪萨斯和中西部各州的家庭是第一代STEM学生。最后，替代能源和健康为重点的研究领域的用户在本建议书中确定的，预计将有重大的国家和全球社会的影响，辅助XPS system.Intellectual DescriptionWhile散装性能的材料发挥了重要作用，在许多应用程序中的选择和使用，丰富的功能取决于界面或表面的相互作用。表面元素组成和性质的轻微变化可能使材料不活跃或活跃或仅略微活跃。这种现象适用于广泛的应用范围，从化学品和燃料，化学和生物传感器，能量转换装置如太阳能电池，电池和燃料电池的制造中的催化反应的基础，到物理，化学和生物反应以及材料的界面和界面处的相互作用，如牙科修复，药物输送，组织修复和再生。当材料的尺寸接近纳米尺度时，其本体性质改变并接近其表面性质。获得关于纳米材料的表面和近表面元素组成以及电子和化学性质的可靠信息在催化、耐腐蚀合金、储能系统、生物材料以及生物医学和光电器件等技术领域至关重要。

PI: Nguyen, Trung V.Proposal: 1429727Title: MRI: Acquisition of an Advanced X-Ray Photoelectron Spectroscopy for Materials ResearchSignificanceAn X-Ray Photoelectron Spectroscopy (XPS) system with more advanced capabilities will enhance the research capability and the STEM human resources development of KU as well as other institutions in Kansas and neighboring states. Students, educators, and researchers from local and regional community colleges and institutions with a high percentage of representation of under-represented groups will be contacted and encouraged to apply for free access to the new instrument. Leading-edge research facilities and broad access policy will be instrumental in recruitment of top-quality faculty and students, including those from under-represented groups and/or from families in rural Kansas and Midwestern states that are first-generation STEM students. Finally, the alternative energy and health focused research areas of the users identified in this proposal are expected to have major national and global societal impacts, aided by the XPS system.Intellectual DescriptionWhile bulk properties of materials play an important role in selection and use in many applications, a wealth of functionality depends on interface or surface interactions. A slight variation in surface elemental composition and properties may make a material inactive or active or only marginally active. This phenomenon applies across a broad spectrum of applications, ranging from the foundation of catalytic reactions in the manufacture of chemicals and fuels, chemical and biological sensors, energy conversion devices like solar cells, batteries, and fuel cells, to physical, chemical, and biological reactions and interactions at interphases and interfaces of materials such as in dental reparation, drug delivery, tissue restoration, and regeneration. As the size of a material approaches nano-scale, its bulk properties change and approach that of its surface properties. Obtaining reliable information on the surface and near surface elemental compositions, and electronic and chemical properties of nano-materials, is crucial in technology areas such as catalysis, corrosion resistant alloys, energy storage systems, biomaterials, and biomedical and optoelectronic devices.