Heterogeneous Reactions of Chloride Salts in the Atmosphere: A Surface Science Approach

气体在固体界面上的反应在大气化学中起着关键作用。该项目旨在更好地了解组成大气颗粒的系统，如海盐颗粒和海盐冰的表面组成。特别是，将使用X射线光电子显微镜、扫描电子显微镜和其他技术来研究混合卤化物(例如，掺溴的氯化钠)中的表面偏析现象。还将研究与大气化学有关的其他非均相反应的动力学和机理，包括水对氯化钠表面反应的影响的粒度依赖性，以及对烟尘的化学初步研究。

Reactions of gases at solid interfaces play a key role in atmospheric chemistry. This project aims at developing a better understanding of the surface composition of systems that make up atmospheric particles, such as sea salt particles and sea salt ice. In particular, the phenomenon of surface segregation in mixed halides (e.g. NaCl doped with Br) will be studied using X-ray photoelectron microscopy, scanning electron microscopy, and other techniques. The kinetics and mechanisms of other heterogeneous reactions relevant to atmospheric chemistry will also be studied, including the particle size dependence of the effect of water on reactions on NaCl surfaces, and preliminary studies of chemistry on soot.