项目名称： 可燃气相爆轰场中核壳结构纳米晶颗粒生长机制的研究

项目编号： No.11502282

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 罗宁

作者单位： 中国矿业大学

项目金额： 20万元

中文摘要： 具有代表性的核壳结构碳包覆型纳米功能材料因其独特的组成结构拥有诸多新奇的物理、化学特性，然而由于其高效制备方法的机理尚不清晰制约了开发应用，可燃气相爆轰合成法可作为对常规合成方法的补充。通过优化多元气相组分及调整气相、气液爆轰参数来控制纳米材料结构、形貌和尺寸等性质，高效制备目标产物；采用高保真的数值方法分析气相爆轰流场中物理量参数、合理选择化学反应模型、颗粒生长模型，同时处理一个多相、场耦合问题，探究气相爆轰场中纳米颗粒的生长机制。本课题研究对进一步完善气相爆轰理论、发展微细观爆炸力学与物理、材料科学等学科的交叉，促进气相爆轰理论在新型、高纯纳米功能材料开发，具有十分重要的科学意义和应用价值。

中文关键词： 爆轰波；多相气体混合物；纳米材料制备；生长机制；CE/SE方法

英文摘要： Core-shell structure functional nanomaterials has many novel physical and chemical properties because of its unique structure and composition, however efficient preparation technology restricts its development and application. Given the combustion gas detonation technology with its advantages in the synthesis of nanomaterials is unique, which can be used as a supplement to conventional synthesis method. Through optimizing the diverse gaseous components and adjust the gas phase, gas liquid detonation parameters to control the nanomaterial properties such as structure, morphology and size and ultimately efficient production of the target product. Numerical methods using high-fidelity analysis of gaseous detonation flow field physical parameters, choose the right chemical reaction model, the particle growth model, meanwhile dealing with a multi-phase, field coupled problems, to explore the growth mechanism of nanoparticles in the gaseous detonation field. This research on the further improvement of the gas phase detonation theory and development of the concept of micro explosion mechanics, physics and material science cross disciplines, to promote gas detonation theory in the development of high purity nanometer functional materials, has important scientific significance and application value.

英文关键词： Detonation wave;Multiple Combustible Gas;Nanocrystalline Synthesis;Growth Mechanism;CE/SE Method