Collisions and Reactions at the Surfaces of Cold Salty Water and Hot Ionic Liquids

在这个由化学系实验物理化学计划资助的项目中，威斯康星大学麦迪逊分校的吉尔伯特·内桑森教授将进行一项研究计划，研究气体在冷盐水和热碱碳酸盐表面的碰撞和反应。 本研究的长期目标是通过探索碰撞能量转移、本体溶剂化、氢键、“相似溶解相似”规则以及酸碱和氧化还原反应的界面类似物来开发气-液界面的分子图像。 本工作有三个具体的目标：1）研究氯化氢气体在水中的界面解离以及溶解离子促进或抑制这种常见酸解离的方式; 2）探索放热气-液反应，例如卤素原子交换F2（g）+ I- = F- + IF（g），其可导致IF产物非热喷射到气相中，以及3）了解熔融碳酸盐溶液如何捕获二氧化硫气体以模拟燃煤电厂中的烟道气脱硫。 男女研究生和本科生都将参加这项研究。

In this project, funded by the Experimental Physical Chemistry Program of the Chemistry Division, Prof. Gilbert Nathanson of the University of Wisconsin-Madison will conduct a research program to study collisions and reactions of gases at the surfaces of cold salty water and hot alkali carbonates. The long-term objective of this research is to develop a molecular picture of gas-liquid interfaces by exploring the interfacial analogues of collisional energy transfer, bulk solvation, hydrogen bonding, the "like dissolves like" rule, and acid-base and oxidation-reduction reactions. The present work has three specific goals: 1) to investigate the interfacial dissociation of hydrogen chloride gas in water and the ways in which dissolved ions enhance or suppress dissociation of this common acid; 2) to explore exothermic gas-liquid reactions, such as the halogen atom exchange F2(g) + I- = F- + IF(g), which may lead to non-thermal ejection of the IF product into the gas phase, and 3) to learn how molten carbonate solutions capture sulfur dioxide gas in order to model flue gas desulfurization in coal-burning power plants. Graduate and undergraduate students, both women and men, will participate in this research.