Control of Nanostructures Via Metal-Carbon Interactions Over Multiple Length Scale Via Metal and Metal Carbide Nanojunctions and Nanowelds

本研究的主要技术主题是进行纳米相碳的结构和重组的跨学科研究（化学工程，物理和化学），包括纳米孔碳，纳米管，纳米纳米，C60富勒烯和MetCars，以及导致特定金属-碳相互作用控制的纳米尺度过程。主要目的是研究碱和过渡金属作用下非晶态碳在纳米晶畴内的重排，通过形成金属碳化物纳米结和其他金属纳米结将碳纳米管相互焊接，垂直取向和水平取向的碳纳米管组成的三维结构的键合，并通过金属碳化物纳米结进行焊接。并制备了具有规则、均匀和排列的孔（过孔）的单片金属碳化物膜，通过体向平均宏观膜表面的法向。这项研究的近期智能产品将导致新的纳米制造工艺和独特的纳米材料，可用于电子，机械和化学应用。这项研究的直接产物将是新物理、新化学和新材料纳米加工工艺。在这些跨学科纳米材料领域接受培训的学生将在纳米医学、纳米电子学和纳米化学结构和工艺等以纳米科学和技术为基础的工业就业市场中具有很强的竞争力。该基金由材料研究部的固态化学、陶瓷和金属项目以及化学和运输系统部的动力学、催化和分子过程项目共同资助。

The main technical theme of this research is to undertake an interdisciplinary study (chemical engineering, physics and chemistry) of the structuring and restructuring of nanophase carbons, including nanoporous carbons, nanotubes, nanoropes, C60 fullerene and MetCars and the nanoscale processes leading to control of specific metal-carbon interactions. The main purpose is to study rearrangenment of amorphous carbons into nanocrystalline domains by the action of alkali and transition metals, welding of carbon nanotubes to one another through the formation of metal carbide nanojunctions and other metallic nanowelds, bonding of three dimensional structures consisting of vertically and horizontally oriented carbon nanotubes oriented orthogonally and welded through the metal-carbide nanojunctions, and the fabrication of monolithic metal carbide membranes with regular, uniform and aligned pores (vias) through the bulk normal to the average macroscopic membrance surface. The near term intellectual products of this research will lead to novel nanofabrication processes and to unique nanomaterials that can be used for electronic, mechanical and chemical applications.%%%The direct products of this research will be new physics, new chemistry, and new materials nanofabrication processes. The students trained in these interdisciplinary nanomaterials areas will be highly competitive in the nanoscience and -technology based industrial job markets of nanomedicine, nanoelectronics and nanochemical structures and processes. This grant is being co-funded by the Solid State Chemistry, Ceramics and Metals Programs of the Division of Materials Research, and the Kinetics, Catalysis and Molecular Processes Program of the Division of Chemical and Transport Systems.