Solid-State NMR of Complex Hybrid Organic-Inorganic Materials

我的研究主要涉及发展固态核磁共振（SSNMR）方法，以氟和磷为探针研究复杂杂化有机无机材料（CHOIM）的结构和分子运动。合成choim存在于替代能源（燃料电池、太阳能电池）和电池技术中，而天然choim则以沥青和生物材料等复杂混合物的形式存在。choim通常由软、硬和流体组分的各种组合组成，必须对其原样进行研究，而不是孤立地进行研究，以便了解产生感兴趣的特性和行为的组分之间的相互作用。因此，它们是SSNMR光谱的理想表征。结构和动态SSNMR方法的曲目，以及模拟工具，将不断扩大，以满足新兴材料技术的复杂性带来的新挑战。莱斯布里奇的设施是加拿大装备最好的材料SSNMR设施之一，这得益于UofL在材料化学研究能力方面的一系列战略投资，通过建设最先进的合成和表征设施，从而形成了氟化学和材料表征专业知识中心的核心。感兴趣的材料包括：无机聚合物、含氟聚合物和嵌段共聚物的纳米复合材料。这些新的SSNMR方法还将用于化学指纹沥青，为油砂行业提供急需的结构和成分信息，以推进油砂行业的升级和提取工艺。该工艺涉及通过低水平直接氟化引入19F作为探针。我的研究小组代表了加拿大唯一专注于杂化有机-无机材料SSNMR的研究。加拿大的存在促进了我们的材料科学界参与新的有机-无机混合技术的开发，从而受益于其在替代能源、电子、环境、化石燃料、医药和农业领域不断扩大的应用范围和随后的经济影响。

My research is primarily concerned with developing Solid-State Nuclear Magnetic Resonance (SSNMR) methods to study the structure and molecular motion of Complex Hybrid Organic-Inorganic Materials (CHOIM) using fluorine and phosphorous as probes. Synthetic CHOIMs are found in alternative energy (fuels cells, solar cells) and battery technologies, whereas natural CHOIMs exist as complex mixtures such as bitumen and biomaterials. CHOIMs are typically composed of various combinations of soft, hard and fluid components, which have to be studied as they are, not in isolation, in order to appreciate the interactions between components that give rise to the properties and behaviours of interest. As such, they are ideally characterized by SSNMR spectroscopy. The repertoire of structural and dynamic SSNMR methods, as well as simulations tools, will be continually expanded to meet new challenges posed by the complexity of emerging material technologies. The facility in Lethbridge is one of the best equipped in Canada for SSNMR of materials, resulting from a series of strategic investments by the UofL in its materials chemistry research capability, by building state-of-the-art synthetic and characterization facilities, thereby forming the core of a centre of expertise in fluorine chemistry and materials characterization. Materials of interest include: nanocomposites of inorganic polymers, fluoropolymers, and block copolymers. These new SSNMR methods will also be used to chemically fingerprint bitumen, which has confounded traditional characterization methods, to provide much needed structural and compositional information to advance upgrading and extraction processes for the oil sands industry. This process involves the introduction of 19F as a probe by low level direct fluorination. My research group represents the only Canadian research presence focused on SSNMR of hybrid organic-inorganic materials. A Canadian presence facilitates the participation of our materials science community in the development of new organic-inorganic hybrid technologies, thus benefiting from its ever widening range of applications and subsequent economic impact in the areas of alternative energy, electronics, environment, fossil fuels, medicine and agriculture.