EMSI: Atmospheric Integrated Research Using Chemistry at Interfaces (AIRUCI)

该研究所将在广泛的空间和时间尺度上对空气-水界面上的反应及其在大气中的重要性有广泛的了解。实验将使用多种方法(长程气室和薄膜衰减全反射的傅里叶变换红外光谱，光谱和大气压电离质谱仪的气溶胶室，激光解吸-傅里叶变换质谱仪，热解吸质谱，常规和高压X射线光电子能谱，气溶胶化学电离质谱仪，红外腔衰荡光谱，气溶胶光化学仪，电子自旋共振研究，计算机控制的扫描电子显微镜和能量色散X射线分析，环境扫描电子显微镜，飞行时间二次离子质谱仪)来研究卤素、氮硫氧化物、有机化合物的气-水界面反应。以及这些物质的混合物。理论方法包括从头算量子化学计算、分子动力学模拟和液体表面毛细管波的理论处理将被用来在最基本的水平上解释实验数据。从实验和理论中获得的见解将被整合到最先进的风场模型中，以评估在地方到区域尺度上的影响，该模型将首先通过应用于实验实验室数据进行测试。在空气-水界面上发生的化学反应对对流层中的大气过程很重要。这个由科学家和工程师组成的团队将使用实验和计算技术来更好地了解发生在薄膜表面或大气气溶胶粒子表面的复杂反应。一批才华横溢、多样化的学生将接受培训，以解决这些复杂的问题。EMSI与加州大学欧文分校数学科学合作伙伴奖(Focus！)为地区高中和中学科学教师提供基础化学和大气科学方面的持续专业培训和课程支持。环境分子科学研究所(EMSI)奖授予大学、工业和/或国家实验室科学家组成的跨学科团队，致力于在分子水平上增加对自然过程和人类活动在环境中产生的过程的基本了解。这些奖项的重点是在具有互补研究兴趣的团队之间进行合作研究，并为学生创造广泛的教育经验。该EMSI代表了加州大学欧文分校(由国家科学基金会化学和大气科学部资助)的六名教职员工、来自捷克科学院、俄罗斯科学院和新西兰坎特伯雷大学的国际研究人员以及太平洋西北国家实验室环境分子科学实验室、劳伦斯·利弗莫尔国家实验室和劳伦斯·伯克利国家实验室的研究人员之间的合作伙伴关系。美国国家科学基金会EMSI奖包括化学合作研究奖CHE-0209719。

This Institute will develop a broad understanding of reactions at the air-water interface and their importance in the atmosphere across a broad range of spatial and temporal scales. Experiments using a variety of approaches (Fourier transform infrared spectroscopy with long path gas cells and attenuated total reflectance for thin films, aerosol chamber with spectroscopic and atmospheric pressure ionization mass spectrometry, laser desorption-Fourier transform mass spectrometry, thermal desorption mass spectrometry, both conventional and high pressure X-ray photoelectron spectroscopy, aerosol chemical ionization mass spectrometry, infrared cavity ring down spectroscopy, aerosol photochemistry apparatus, electron spin resonance studies, computer-controlled scanning electron microscopy with energy dispersive X-ray analysis, environmental scanning electron microscopy, time-of-flight secondary ion mass spectrometry) will be used to study the air-water interface reactions of halogens, oxides of nitrogen and sulfur, organic compounds, and mixtures of these. Theoretical approaches including ab initio quantum chemical calculations, molecular dynamics simulations, and theoretical treatments of capillary waves on liquid surfaces will be used to interpret the experimental data at the most fundamental level. The insights gained from the experiments and theory will be integrated into a state-of-the art airshed model to assess the implications on local to regional scales, and this model will be tested first by application to experimental laboratory data. The chemical reactions that take place at the air-water interfaces are important to atmospheric processes in the troposphere. This team of scientists and engineers will use experimental and computational techniques to better understand the complex reactions occuring at the surface of a thin film or the surface of an atmospheric aerosol particle. A cohort of talented and diverse students will be trained to work on these complex problems. The EMSI is partnering with the University of California-Irvine Math Science Partnership award (FOCUS!) to provide continuing professional training and curricular support in both fundamental chemistry and atmospheric sciences to regional high school and middle school science teachers.Environmental Molecular Science Institute (EMSI) awards are given to interdisciplinary teams of university, industrial and/or national laboratory scientists working on problems aimed at increasing fundamental understanding of natural processes and processes resulting from human activities in the environment at the molecular level. The emphasis in these awards is on collaborative research among teams with complementary research interests and the creation of broad educational experiences for students. This EMSI represents a partnership between six faculty at the University of California-Irvine (funded by the National Science Foundation Divisions of Chemistry and Atmospheric Sciences), international researchers from the Czech Academy of Sciences, Russian Academy of Sciences, and the University of Canterbury, New Zealand together with researchers from the Environmental Molecular Science Laboratory at the Pacific Northwest National Lab, Lawrence Livermore National Laboratory and Lawrence Berkeley National Laboratory. The NSF EMSI award incorporates a Collaborative Research in Chemistry award, CHE-0209719.