Synchrotron X-ray Spectroscopy of Metal Nanostructures

金属纳米结构的同步辐射 X 射线光谱

• 批准号: RGPIN-2014-04080
• 负责人: Zhang, Peng
• 金额: $ 2.48万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632519
• 关键词: Synchrotron; ray; Spectroscopy; Metal; Nanostructures

Nanoparticles are the most widely used building blocks in current nanotechnology. Improved understanding of the structure-property relationships of nanoparticles is crucial for advancing nanotechnology. This proposed research program focuses on the use of powerful synchrotron X-ray spectroscopy techniques to uncover the structure-property relationships of some technologically important nanoparticle systems. Three classes of nano-systems will be studied, including (i) gold and silver nanoparticles with precisely controlled compositions, (ii) biologically functionalized nanoparticles and (iii) catalytically active nanoparticles. By using the synchrotron spectroscopy techniques that we recently established in conjunction with the new techniques outlined in this proposal, it is anticipated that significantly improved understanding of the structure-property relationships of the above three classes of nano-systems will be resulted, which will make important contributions to the fundamental research in physical chemistry and materials science. The proposed research will also improve the performance of nanometer-sized catalysts and biological devices, thus contributing to the advancement of nanotechnology in Canada. Finally, development of the unique synchrotron X-ray techniques proposed in this work will benefit many Canadian researchers who are using the national synchrotron facility of Canada, the Canadian Light Source.

纳米颗粒是当前纳米技术中使用最广泛的构件。对纳米颗粒的结构特性关系的提高了解对于推进纳米技术至关重要。该提出的研究计划着重于使用强大的同步加速器X射线光谱技术来揭示某些技术上重要的纳米颗粒系统的结构 - 培训关系。将研究三类纳米系统，包括（i）具有精确控制组成的金和银纳米颗粒，（ii）生物学功能化的纳米颗粒和（iii）催化活性纳米颗粒。通过使用我们最近与本提案中概述的新技术建立的同步子分类技术，可以预见，将显着改善对上述三类纳米系统的结构 - 培训关系的理解，从而为物理化学和材料科学对物理化学的基本研究做出重要贡献。拟议的研究还将改善纳米大小的催化剂和生物设备的性能，从而有助于加拿大纳米技术的发展。最后，这项工作中提出的独特同步X射线技术的开发将使许多使用加拿大光源加拿大国家同步基金会的加拿大研究人员受益。