纳米碳同素异形体电爆炸合成机理研究

项目名称： 纳米碳同素异形体电爆炸合成机理研究

项目编号： No.11272158

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 王金相

作者单位： 南京理工大学

项目金额： 75万元

中文摘要： 富勒烯（C60）、碳纳米管等纳米碳材料具备独特的物理化学性能和力学性能，在物理、化学、生命科学、医学等许多领域具有较高的应用价值。本项目针对上述碳纳米材料的电爆炸合成机理开展研究。主要研究内容包括：1. 针对典型纳米碳材料的同素异形体开展其分子结构重构条件的研究；2. 不同参数条件下（脉冲高压放电参数、材料特性、尺寸特征、气氛环境等）纳米尺度碳同素异形体的制备试验研究，探索相关参数对产物及产物微观结构特征的影响；3.纳米尺度碳同素异形体形成细观机理研究及制备参数优化分析。通过本项目的研究，建立较为完整的电爆条件下纳米碳同素异形体的形成机制、微观结构演化机理，并将定性描述相关因素对纳米碳同素异形体产物及产物微观结构特征等的影响关系。其中在考虑电爆炸引起的高温高压效应的基础上微观角度的多参数分子重构条件计算模型的建立和分子构形演化模型及数值计算方法是本项目的主要创新之处。

中文关键词： 电爆炸；碳纳米材料；碳包覆纳米金属颗粒；电弧击穿；沉积能量

英文摘要： New spatial forms of carbon - fullerenes, nanotubes, etc., are of great scientfic and applied value in the field of physics, chemistry, life science and medicine etc. due to their unique physicochemical and mechanical properties. Formation and phase transformations mechanism of the nano carbon allotropes will be researched when they are fabricated by electric wires explosion.The main research work are as follow: 1.Conditions for the reconstruct of the of the carbon molecule; 2.Experimental research of the nano carbon allotropes fabrication under different conditions vary with the parameters electric circuit, the size of the conductor and the surrounding medium etc. furthermore, the influence of related parameters on the products as well as their characters will also studied; 3. Mechanism of nano carbon allotropes formation and the optimization of the parameters will also be studied. An integrated mechanism of the nano carbon allotropes formation by the method of elctric wire explosion will be established, and the relations of the related parameters and the products as well as their characters will be described quantitatively. The establish of the multi-parameter related calculation model for the molecule reconstruct with the high pressure and high temperature effects considered is innovative, and that for the mo

英文关键词： Electrical explosion；Carbon nanomaterials；carbon-coated metal nanoparticle；Arc discharge；Deposited energy