喷雾热解耦合流化床还原技术合成空心铜基复合纳米材料用于Rochow反应的研究

项目名称： 喷雾热解耦合流化床还原技术合成空心铜基复合纳米材料用于Rochow反应的研究

项目编号： No.21206025

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 化学工程及工业化学

项目作者： 车红卫

作者单位： 河北工程大学

项目金额： 25万元

中文摘要： 实现多元组分空心无机微纳米结构催化材料的规模化合成是化学和材料科学等领域面临的难点问题。本项目基于流化床反应过程中高效传热传质利于强化反应控制的工艺特点，针对高温喷雾热解过程中空心铜基材料组分与结构不易控制的难题，提出喷雾热解耦合流化还原技术的新工艺，制备组分与结构可控CuO-Cu2O-Cu空心纳米结构的催化材料，用于Rochow反应催化合成有机硅单体。重点研究喷雾热解过程中空心结构的形成机理和流化床反应过程中多元组分的可控机制，揭示耦合反应过程中材料结构和组分的调控机理，解析CuO-Cu2O-Cu空心纳米结构材料结构-组分-催化性能的构效关系。本项目旨在为制备多元组分空心无机微纳米结构材料提供新的途径和方法，促进工程技术、化学、材料等多学科的交叉融合，为空心微纳米结构催化材料的规模化合成和催化应用提供理论基础和科学依据。

中文关键词： 喷雾热解；空心；催化；氧化铜；复合氧化物

英文摘要： It still remains a huge challenge for the large-scale synthesis of hollow multicomponent inorganic micro/nanomaterials as catalysts in the fields such as chemistry, material science, and so on. One problem is that it is difficult to control the composition and structure of hollow Cu-based mateirials in the spray pyrolysis process. As a result, hollow CuO-Cu2O-Cu composite nanomaterials are not easy to be obtained. As we know, the fluidized bed system is characterized by favoring the heat- and mass-transfer during the reaction process. Therefore, this provides an advantage over effectively controlling their composition for the synthesis of multicomponent nanomaterials with hollow structure. This project presents a new strategy to fabricate hollow CuO-Cu2O-Cu nanomaterials with controllable composition and structure, which involves a hybrid system coupling the spray pyrolysis with the reduction in the fluidized bed. The as-synthesized hollow CuO-Cu2O-Cu nanomaterials as a new catalyst will provide a potential application in preparing organosilicon monomers such as dimethyldichlorosilane via the Rochow reaction. This project focuses on the two aspects: one is investigating the formation mechanism of hollow structures via the spray pyrolysis reaction, and exploring the controllable regularity of multicomponent of ho

英文关键词： Spray pyrolysis；hollow;；catalysis；copper oxide；composite oxides