项目名称: 微波场中纳米氧化物的溶液燃烧合成过程及机理研究
项目编号: No.51272079
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: 严有为
作者单位: 华中科技大学
项目金额: 78万元
中文摘要: 开展微波作用下纳米氧化物的溶液燃烧合成过程和机理的研究,建立微波场中前驱体溶液的燃烧合成反应热力学和动力学模型,研究微波在前驱体溶液中的传输和吸收规律,数值模拟微波作用下前驱体溶液的温度分布特点和变化规律,研究微波对溶液燃烧合成过程和合成产物结构、性质的影响,揭示前驱体溶液的微波加热机制以及微波诱发、促进溶液燃烧合成反应的机理。在此基础上,一方面,利用微波的致热效应和非热效应,进一步完善传统的溶液燃烧合成技术,为优质纳米氧化物的燃烧合成提供技术指导;另一方面,进一步丰富微波作用化学的基本理论,为微波作用的充分发挥和合理利用奠定理论基础。
中文关键词: 微波;纳米氧化物;溶液燃烧合成;机理;
英文摘要: Process and mechanism of microwave-induced solution combustion synthesis of nanocrystalline oxides will be studied. Dynamics and thermodynamics models of precursor solution combustion synthesis in microwave field will be established. The principle of microwave transmission and absorption in precursor solution will be investigated. Numerical simulation of the law and the characteristic of temperature distribution will be given. The effects of microwave on solution combustion synthesis process and the microstructure and properties of products will be investigated. The mechanisms of microwave heating and microwave-induced solution combustion synthesis in precursor solution will be proposed. On these bases, we can further improve the tranditional solution combustion synthesis using heating effects and nonthermal effects of microwave and give a technical guidance in preparation of excellent nanocrystalline oxides. On the other hand, it can further enrich fundamental theory of microwave chemistry and provide a necessary theoretical foundation to make full use of microwave.
英文关键词: Microwave;Nanocrystalline oxides;Solution combustion synthesis;Mechanism;