离子液体@钯核壳纳米材料的可控合成及其一步氧化酯化反应催化性能评估

项目名称： 离子液体@钯核壳纳米材料的可控合成及其一步氧化酯化反应催化性能评估

项目编号： No.21506234

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 有机化学

项目作者： 崔朋蕾

作者单位： 中国科学院过程工程研究所

项目金额： 21万元

中文摘要： 将物理和化学性质有显著差异的不同物质集成在一起实现材料的多功能化，是纳米材料合成领域的一个前沿研究方向。本项目就离子液体与贵金属构成的异质结构纳米材料在催化领域的拓展应用展开研究，由离子液体和贵金属钯(Pd)构成的核壳结构纳米材料的设计和构建入手，既结合传统核壳结构材料中内核颗粒可以对外壳层金属原子施加界面晶格应变及电子耦合效应，又可以利用离子液体固有的优点，调节并优化核壳结构纳米材料在一步氧化酯化反应催化活性。创新性在于以离子液体作为核壳结构材料的内核组分，拓宽了离子液体在催化及纳米材料合成领域的应用范围。

中文关键词： 离子液体；贵金属；钯；核壳结构；酯化氧化

英文摘要： An important frontier in nanocrystal synthesis is the incorporation of different materials within the same nanostructures as a means of increasing functionality. This project aims at the design and fabrication of core-shell nanostructures consisting of ionic liquids (ILs) and palladium (labeled as IL@Pd) as well as their application in catalysis. The core-shell IL@Pd nanomaterials could tune the catalytic performance in direct oxidative esterification of aldehydes by combining the lateral strain effect and electronic coupling effect in conventional core-shell nanostructures with the advantages of ILs. This project focuses on the controllable syntheses, characterizations, and catalytic evaluation of the core-shell IL@Pd nanomaterials. The novelty of this project lies in chemical composition of the core-shell structure, in which ILs is creatively used instead of noble metal or semiconductor as the core region, which is not only helpful to save valuable noble metals, but also broaden the scope of ILs in nanomaterials synthesis and catalytic application.

英文关键词： Ionic Liquid;Noble metal;Palladium;Core-shell structure;oxidative esterification