X-ray Scattering Studies of Interfaces Between Two Immiscible Electrolyte Solutions

本研究项目研究不混溶电解质溶液界面的分子水平结构。在分析和表面化学项目的支持下，芝加哥伊利诺伊大学物理系的Mark Schlossman教授和北伊利诺伊大学化学和生物化学系的peter Vanysek教授，使用同步加速器x射线散射结合电化学方法来探测液-液界面上离子和溶剂分子的顺序。这种排序和离子在液相之间的转移是由4电极恒电位器施加在界面上的电势控制的。该项目使水相和有机相之间的界面结构能够在分子长度尺度上进行探测。研究结果在分离过程、药物转运、能量转换、传感器响应和相转移催化等领域具有广泛的应用前景。研究促进了对界面结构和电荷输运的基本认识。

This research project investigates molecular level structure at the interface between immiscible electrolyte solutions. With the support of the Analytical and Surface Chemistry Program, Professor Mark Schlossman in the Department of Physics at the University of Illinois at Chicago and Professor Petr Vanysek in the Department of Chemistry and Biochemistry at Northern Illinois University, use synchrotron x-ray scattering in combination with electrochemical methods to probe the ordering of ions and solvent molecules at liquid-liquid interfaces. This ordering and the transfer of ions between liquid phases is controlled by an electrical potential imposed across the interface by a 4-electrode potentiostat. This project is enabling structure at the interface between aqueous and organic phases to be probed on the molecular length scale. Results have broad application in areas related to separation processes, drug transport, energy conversion, sensor responses, and phase transfer catalysis. Studies advance fundamental understanding of interfacial structure and charge transport.