Interfacial Chemistry of Alkali Halides

该项目是一项实验研究，旨在提供碱性和镁卤化物表面在干燥和潮湿条件下氧化的基本信息。 振动和频产生（SFG）光谱技术将被应用于这项研究，这是非常适合的，因为它是敏感的固体和液体表面上的物种提供分子水平的信息。 此外，质谱法将用于监测气相组成，拉曼和红外光谱法将提供反应前后水溶液的组成。 更复杂的大气相关系统也将进行研究，包括含氧有机化合物和烷基卤化物的掺入。这些实验室研究的结果将有助于定量了解海洋边界层中涉及卤素的机制。 这是可以被纳入大气化学过程的数值模式，以检查这些过程相对于众所周知的气相过程的重要性的信息。 该项目将对来自代表性不足群体的学生进行重要培训，帮助提高地球科学研究的多样性。

This project is an experimental study aimed to provide fundamental information on the oxidation of alkali and magnesium halide surfaces under dry and wet conditions. The technique of vibrational sum frequency generation (SFG) spectroscopy will be applied to this study, which is well suited because it is sensitive to species located on solid and liquid surfaces providing molecular level information. In addition, mass spectrometry will be employed to monitor the gas phase composition, and Raman and infrared spectroscopy will provide the composition of aqueous solutions before and after reaction. More complex, atmospherically relevant systems will also be studied that include incorporation of oxygenated organic and alkyl halide compounds.The results from these laboratory studies will help bring quantitative understanding to the mechanisms involving halogens in the marine boundary layer. This is information that can be incorporated into numerical models of atmospheric chemical processes to examine importance of these processes relative to well known gas phase processes. This project will involve significant training of students from underrepresented groups helping improve diversity in geosciences research.