基于离子液体新型二元溶剂体系的溶液性质研究

项目名称： 基于离子液体新型二元溶剂体系的溶液性质研究

项目编号： No.21301114

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 李淑妮

作者单位： 陕西师范大学

项目金额： 30万元

中文摘要： 纯离子液体由于粘度大不利于流动传输而导致工业操作困难，故离子液体与低粘度溶剂的混合体系是离子液体走向应用的必然趋势，但此类体系溶液性质研究的匮乏又是制约其应用发展的瓶颈，因此，含离子液体混合溶剂体系相化学和热力学性质的探讨对于实现离子液体的实质性应用是十分关键的；本项目拟在我们课题组多年研究溶液化学的基础上，系统探讨离子液体与水、醇和酰胺等三类低粘度溶剂组成的新型二元溶剂体系的溶液性质；构建体系的多温溶解度、密度、粘度、电导率和折光率等基本理化性质数据库，并与相关热力学模型关联获得体系的体积性质、传输性质、渗透系数、活度系数、过量吉布斯自由能等，以进一步实现含离子液体二元溶剂体系性质的理论预测，为探究二元溶剂组分之间的弱相互作用规律提供翔实的依据;本项目的开展，不仅能够丰富和发展离子液体溶剂体系的基础溶液化学，促进化学热力学和相关学科的发展，并且将对离子液体的开发应用起到重要的指导作用。

中文关键词： 离子液体；二元溶剂；粘度；金属纳米粒子；电催化剂

英文摘要： It is an inevitable trend to utilize the mixed systems composed of ionic liquids and the low viscosity solvents because the large viscosity of pure ionic liquid result in the low rate of flow and thus make it difficult to operate in industry. However, the lack of solution properties of such mixed solvent systems severely restricts their development. So, the physical-chemical and thermodynamic properties of ionic liquids involving solvent systems is undoubtedly a key point. On the base of our research experience in solution chemistry in the past decade, this project will focus on the new binary solvent systems containing ionic liquids and the low viscosity solvents such as water, alcohols, and amides. The database of the basic physical chemical properties, such as solubility, density, viscosity, conductivity, and refractive index be established. The experimental data will be correlated by the related thermodynamic models to calculate the volumetric properties, transport properties, osmotic coefficients, activity coefficients, and excess Gibbs energy. The theoretical prediction of physical chemical properties of such ionic liquids containing binary solvent systems will be developed based on the research results. The development of this project will not only enrich and promote the solution chemistry of ionic liquid

英文关键词： ionic liquids；binary solvents；viscosity；metal nanoparticles；electrocatalysis