离子液体基功能化Janus纳米片的设计、制备与应用

项目名称： 离子液体基功能化Janus纳米片的设计、制备与应用

项目编号： No.51273087

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 宋溪明

作者单位： 辽宁大学

项目金额： 80万元

中文摘要： 本项目设计、合成离子液体及聚合离子液体基Janus纳米片，并对其结构、性质进行表征。利用修饰离子液体或聚合离子液体的离子交换性，通过对其阴离子类型的控制，较为简便地实现对纳米片的Janus 平衡的可逆调控。此外，利用这种特性还在Janus纳米片亲水表面选择性引入金属配合物阴离子，并通过进一步还原反应实现具有化学催化性质的单分散金属纳米粒子在Janus纳米片上的原位选区生长。本项目还将利用该新型Janus纳米片与极性溶剂以及离子液体的相容性，以离子液体基Janus纳米片为颗粒乳化剂构筑具有较高稳定性的"水-有机溶剂"与"离子液体-有机溶剂"乳液体系，并探讨两种微乳液形成以空气为连续相的"干液滴"的可能性。总之，该项目首次将离子液体引入到Janus材料的构筑中，为新型功能化材料的制备提供了新的思路。

中文关键词： 离子液体；Janus纳米结构；离子响应性；Pickering乳液；催化

英文摘要： Ionic liquids (ILs) or polymeric ionic liquids (PILs) based Janus nanosheets are designed, synthesized and characterized in this project. By using the ion-exchangable property of the modified ILs or PILs, the type of the anion of the modifier can be adjusted, and thus the Janus balance of the nanosheets can then be transformed reversibly. Moreover, metal complex based anions can also be introduced onto the selective surface of the Janus nanosheets via the ion-exchangable property. Based on this, metal nanoparticles with catalytic properties can then be in-situ growed via the reduction of the immobilized anions. In addition, using ionic liquids based Janus nanosheets as solid emulsifiers, emulsions with high stability, such as 'water-nonpolar organic solvents' emulsions or novel 'ionic liquids-nonpolar oeganic solvents' emulsions can be fabricated respectively. As a result, "dry droplets" of organic solvents or ionic liquds can be achieved after the continuous phase is removed. Overall, for the first time, Ionic liquids are introduced into the structure of Janus materials, and this will pave a new way for the construction of novel functionalized composites.

英文关键词： Ionic liquids；Janus nanostructures；Anion responsiveness；Pickering emulsions；Catalysis