Chemistry and materials under extreme conditions

极端条件下的化学和材料

• 批准号: 327574-2010
• 负责人: Song, Yang
• 金额: $ 2.91万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=527019
• 关键词: Chemistry; materials; under; extreme; conditions

I propose a significant expansion of my research program in the area of chemistry and materials science under extreme conditions, in particular, at high pressures. Pressure constitutes one of the three fundamental thermodynamic parameters which plays a critical role in regulating the structures and properties of materials. At high pressures, bonding patterns of molecules are significantly altered leading to the formation of new structures and materials. In our laboratory, diamond anvil cells are used to achieve static high pressure conditions and over a broad temperature range. Materials rendered at high pressures will be structurally characterized in situ using various techniques, including vibrational spectroscopy, X-ray diffraction and many synchrotron based probes. Armed with these powerful tools, we will be able to carry out a wide range of projects in the new frontier of high-pressure research, such as studies of d-block metal complexes, high-pressure photochemistry and noble gas chemistry. These studies attempt to gain in-depth understanding of the chemical and physical principles of high-pressure effect on materials at the molecular level, utilization of which may lead to new applications. For example, we may be able to use a combination of pressure and morphology as a driving force to tune structures and properties of a variety of nanomaterials to enhance their performance in certain applications, such as chemical sensing. Furthermore, we will develop new materials with desirable properties and novel functionalities, such as hydrogen storage materials and zeolite materials using high-pressure techniques. Overall, our research program will not only contribute to fundamental high-pressure science, but may make significant impact on several global demanding issues, such as the urgent need of new materials and sustainable energy.

我建议在极端条件下，特别是在高压条件下，显著扩大我在化学和材料科学领域的研究计划。压力是三个基本热力学参数之一，它在调节材料的结构和性能方面起着至关重要的作用。在高压下，分子的成键模式发生显著变化，导致新结构和材料的形成。在我们的实验室中，金刚石顶锤单元被用来在较宽的温度范围内实现静态高压条件。在高压下渲染的材料将使用各种技术进行原位结构表征，包括振动光谱、X射线衍射和许多基于同步加速器的探针。有了这些强大的工具，我们将能够在高压研究的新前沿开展广泛的项目，如d-块金属络合物的研究、高压光化学和惰性气体化学的研究。这些研究试图在分子水平上深入了解高压对材料作用的化学和物理原理，利用这些原理可能会带来新的应用。例如，我们可能能够使用压力和形态的组合作为驱动力来调整各种纳米材料的结构和性能，以增强它们在某些应用中的性能，例如化学传感。此外，我们还将利用高压技术开发具有理想性能和新功能的新材料，如储氢材料和沸石材料。总体而言，我们的研究计划不仅将对基础高压科学做出贡献，还可能对几个全球紧迫的问题产生重大影响，例如迫切需要新材料和可持续能源。