生物还原-离子液体增强负载法制备丙烯环氧化金催化剂的过程原理研究

项目名称： 生物还原-离子液体增强负载法制备丙烯环氧化金催化剂的过程原理研究

项目编号： No.21476187

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 有机化学

项目作者： 李清彪

作者单位： 厦门大学

项目金额： 96万元

中文摘要： 本项目旨在探索生物还原-离子液体增强负载法（BR-ILEI）制备用于丙烯环氧化制环氧丙烷（PO）的负载型金催化剂的相关基础问题，研究基于BR-ILEI 法的金催化丙烯环氧化的反应机理，揭示离子液体对于金纳米颗粒与载体相互作用的影响机制；阐明生物质分子或基团在离子液体增强负载过程和催化反应过程中的作用机制，探索基于BR-ILEI 法的金催化丙烯环氧化反应温度较高的内在因素，以及影响PO 选择性和氢气效率的关键因素，获得能够降低催化反应温度并同时提高催化剂选择性和氢气效率的有效手段，为建立BR-ILEI 法制备丙烯环氧化负载型金催化剂的技术并开发有实际应用价值的催化剂提供必要的理论基础。本项目将生物技术、纳米技术和催化剂工程结合起来，揭示高活性丙烯环氧化负载型金催化剂制备新方法的过程原理，项目预期的理论成果可丰富金催化剂领域的相关知识，所得的催化剂也将具有潜在应用价值。

中文关键词： 负载型催化剂；金纳米颗粒；生物还原；离子液体；丙烯环氧化

英文摘要： The project aims at exploring the fundamental issues underlying preparation of supported gold catalyst for propylene epoxidation towards propylene oxide (PO) by bioreduction-ionic-liquid-enhanced-immobilization (BR-ILEI) method. The reaction mechanism of propylene epoxidation over gold catalysts based on the BR-ILEI method will be studied. And the effect of ionic liquid on the interaction between gold nanoparticles and their support will be elucidated. Moreover, the role of the molecules and groups of the biomass in the ILEI process and catalytic reaction will be clarified. Furthermore, the inherent factors determining the higher reaction temperature for propylene epoxidation over the catalyst based on the BR-ILEI method as well as the key factors that affect the PO selectivity and hydrogen efficiency will be found out. In addition, the effective approaches that can not only lower the catalytic reaction temperature, but also improve the selectivity to PO and hydrogen efficiency will be established. The purpose of this project is to establish theoretical foundation for innovative technology for supported gold catalyst based on the BR-ILEI method and development of practical catalyst for epoxidation of propylene. Interestingly, the project is featured by combining biotechnology, nanotechnology and catalyst engineering to elucidate the principles of a new preparation method for highly active catalyst for epoxidation of propylene over supported gold catalysts, and will therefore have significant innovation. Besides, the theoretical results of the project are expected to enrich the knowledge related to gold catalyst and the as-prepared catalyst will also have potential application.

英文关键词： Supported catalysts;Gold nanoparticles;Bioreduction;Ionic liquid;Propene epoxidation