生物质甘油氢解Ru基双金属催化剂的构效关系研究

项目名称： 生物质甘油氢解Ru基双金属催化剂的构效关系研究

项目编号： No.21302237

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： 冯建

作者单位： 重庆科技学院

项目金额： 25万元

中文摘要： 甘油是一种可来源于生物质的绿色化学品。研究甘油催化氢解合成丙二醇是当前绿色化学领域的重要课题之一。实现上述转化的前提和关键是获得适宜高效的氢解催化剂。在甘油氢解反应中，催化剂的结构变化会影响其催化性能已得到初步证实，但具体的构效关系尚未明确，影响规律还不清楚，导致催化剂的研制带有盲目性。申请者前期研究发现Ru基催化剂在甘油氢解反应中具备很高活性，当引入适当的第二金属组分时还可显著提高丙二醇的选择性。基于此，本项目拟制备一系列具有不同结构特点的Ru基双金属催化剂并将其用于甘油的氢解反应，重点研究该体系中催化剂的结构变化对其催化性能的影响规律。利用SEM、TEM、XRD、TPR和气体吸附等多种现代分析技术对催化剂结构进行表征；通过综合分析催化剂的结构表征结果和催化性能数据，揭示催化剂结构对催化性能的影响规律，明确催化剂构效关系。研究结果将为甘油氢解合成丙二醇催化剂的研制奠定理论基础。

中文关键词： 甘油氢解；构效关系；1;2–丙二醇；双金属催化剂；钌

英文摘要： Glycerol is a green chemical which can be derived from biomass. In recent years, the rapid development of biodiesel production formed large quantities of glycerol as a by-product. The catalytic hydrogenolysis of glycerol is an environment-friendly reaction that can obtain important organic chemicals like propanediol; it is also one of the most attractive subjects in green chemistry. To develop feasible and efficient catalysts is the key point to achieve the hydrogenolysis of glycerol to propanediol. In this reaction, it has been proved that the changes of the catalyst structure have an effect on its performance. However, the exact structure-performance relationship is still undefined and the influence law is indistinct, resulting in blindness of catalysts development. In our earlier work, we have demonstrated that the Ru-based catalysts show high activity for the hydrogenolysis of glycerol; the selectivity to propanediol can be markedly improved when introducing a suitable second metal. Based on this issue, the research emphasis of this study is focused on the structure-performance relationship of the glycerol hydrogenolysis catalysts. The Ru-based bimetallic catalysts with different structure characteristics are prepared by appropriate techniques, and used in the hydrogenolysis of glycerol. The catalysts are ch

英文关键词： hydrogenolysis of glycerol；structure-performance relationship；1;2-propanediol；bimetallic catalysts；ruthenium