多元锰基复合氧化物的受控组装及其氧还原应用研究

项目名称： 多元锰基复合氧化物的受控组装及其氧还原应用研究

项目编号： No.51272011

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： 王宁

作者单位： 北京航空航天大学

项目金额： 80万元

中文摘要： 锰基复合氧化物因其特殊的原子排列方式及优异的催化性能而在有机合成、氯碱工业、低温燃料电池领域受到广泛关注，发展其多层次、多维度的组装方法并实现其催化特性耦合是当前非铂锰氧化物电催化材料研究的重要方向。本项目拟以MxMn3-xO4（M = Zn、Fe、Co、Ni等）为研究对象，开展其温和条件下可控制备及电化学氧还原（ORR）特性研究，主要内容包括：（1）基于分子模板微限域效应的单分散锰复合氧化物纳米晶合成及表面修饰；（2）制备复杂结构多元锰复合氧化物及其组装体；（3）锰氧化物电催化氧还原过程动力学研究；（4）复杂组装及功能分子修饰的氧还原协同效应机制。 本项目试图探索操作简单、环境友好的锰复合氧化物有序纳米结构材料的湿化学合成方法，并在多组分协同催化机制的基础上实现其高效、稳定氧还原电催化应用，从而为新型锰复合氧化物电催化材料的开发及应用提供初步的理论和实验依据。

中文关键词： 锰氧化物；溶液合成；自组装；协同效应；催化

英文摘要： Due to the special atomic arrangement and excellent catalytic performance, doped manganese oxides are drawing increasing attentions in wide areas such as organic synthesis, chlor-alkali industry, and low temperature fuel cell. Developing the multi-level, multi-dimensional assembly strategy and coupling their catalytic characteristics is an important research direction for manganese oxide based non platinum electrocatalytic materials. The project plans to take the electrochemical oxygen reduction (ORR ) characteristics of MxMn3-xO4 ( M = Zn, Fe, Co, Ni etc.) materials as the main object and conduct their facile synthesis under mild conditions in a controlled manner. The main contents include: 1st, synthesis and surface modification of monodisperse manganese oxide nanocrystals based on the micro-confinement effect of molecular templates; ( 2) preparation of hierarchically nanostructured manganese oxide composites and their assemblies; ( 3) kinetic research on the electrocatalytic oxygen reduction performance of the manganese oxide composites; (4 ) synergy effects of crystal assembly and surface modification on the ORR electrocatalytic mechanism. This project attempts to explore the simple, environment friendly wet chemical synthesis of nanostructured manganese oxide composites, and study the multi-component syner

英文关键词： Manganese Oxide；Solution Synthesis；Self-Assembly；Synergistic Effect；Catalysis