纳米粒子诱导石墨烯卷曲的动力学特性及调控

项目名称： 纳米粒子诱导石墨烯卷曲的动力学特性及调控

项目编号： No.51302126

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 李云芳

作者单位： 临沂大学

项目金额： 25万元

中文摘要： 石墨烯只有一个碳原子厚，是目前最理想的二维纳米材料。独特的物理化学性能，使石墨烯及其复合材料成为许多领域极佳的候选功能材料。然而石墨烯的二维平面状结构处于亚稳态，其形态易受外界环境的影响而发生转变。本课题致力于纳米粒子诱导石墨烯卷曲的动力学特性及调控的理论研究，明确不同纳米粒子和石墨烯自组装的结构演变机制及作用机理，归纳分析得到规律性认识，获得对石墨烯二维结构不稳定性的深刻理解；并将熔体的形核理论进行改进，用于探索石墨烯的自卷曲特性，为纳米粒子诱导的石墨烯卷曲建立完整地理论体系；通过控制石墨烯及纳米粒子的形状和尺寸，将石墨烯折叠成各种形状，获得结构性质迥异的新的碳纳米结构；在此基础上，找到对石墨烯/纳米粒子自组装过程进行优化和调控的方法，制备具有特定结构和功能的新型复合材料并研究其性质，探索石墨烯新的应用领域。

中文关键词： 石墨烯；纳米粒子；自卷曲；动力学特性；聚合物螺旋

英文摘要： Graphene, a mono-atomic layer of carbon atoms, is currently the most ideal two-dimensional nanomaterials. Due to the unique physical and chemical properties, graphene and composite materials have become the excellent functional candidate materials of many fields. However, the two-dimensional planar structure of graphene is in the metastable state that its morphology can easily transit under the influence of the external environment. This project devotes to the theoretical study about the dynamics characteristics and control of nanoparticles induced graphene scrolling. Study the configuration evolution and interaction mechanism of the self-assemble of graphene with different nanoparticles to obtain the profound understanding of the instability of graphene two-dimensional structure. Improve the melt nucleation theory to explore the self-scrolling characteristic, and establish a complete theoretical system for nanoparticles induced graphene scrolling. By controlling the shape and size of graphene and nanoparticle, the graphene will be folded into various configurations, which are the new carbon nanostructures with distinct properties. On this basis, finding a method to optimize and control the self-assemble of graphene and nanoparticles. Realize the preparation of composite materials with special structure and func

英文关键词： graphene；nanoparticles；self-scrolling；dynamics characteristic；polymer helix