Periodic Carbon Nanotube Arrays

9704644 Ruoff本研究项目强调碳和金属碳化物纳米管和纳米棒周期性阵列的合成和化学和物理性质的表征。这是第一次合成和表征这些类型的阵列。纳米管阵列将由具有明确尺寸、排列在预定空间模式中的催化金属颗粒的周期性阵列生长而成。机械强度、场发射和化学反应性等特性将被确定，纳米管阵列将与聚合物、金属或陶瓷等基质材料一起研究。对非常小直径的碳纳米纤维和长丝的成核和生长也将有重要的了解。关于纳米管和纳米阵列的基本合成的基本知识，以及它们的化学和物理性质，支撑了工业的几个重点领域的高科技兴趣。这些包括高导热碳纤维/碳基复合材料，真空微电子器件，纤维增强复合材料，新型膜和催化剂材料，以及用于高密度记录介质的新型磁性材料。该项目由数学和物理科学理事会多学科活动办公室以及材料研究部固体化学和聚合物项目资助，由一项名为“与工业界学术联络资助机会”（GOALI）的倡议提供支持。* * *

9704644 Ruoff This research project emphasizes the synthesis and characterization of the chemical and physical properties of periodic arrays of carbon and metal carbide nanotubes and nanorods. This is the first time these types of arrays have been synthesized and chararcterized. The nanotube arrays will be grown from a periodic array of catalytic metal particles of well- defined sizes arranged in a predetermined spatial pattern. Properties such as mechanical strength, field emission, and chemical reactivity will be determined, and nanotube arrays will be studied with matrix materials such as polymer, metal, or ceramic. A significant understanding of the nucleation and growth of very small diameter carbon nanofibers and filaments will also be obtained. %%% Basic knowledge regarding the fundamental synthesis of nanotubes and nanoarrays, together with their chemical and physical properties, underpins several focused areas of high technological interest to industry. These include high thermal conductivity carbon fiber / carbon matrix composites, vacuum microelectronic devices, fiber-reinforced composites, novel membrane and catalyst materials, and new magnetic materials for high-density recording media. This project is supported under an initiative entitled Grant Opportunities for Academic Liaison with Industry (GOALI), and it is funded by the Office of Multidisciplinary Activities of the Directorate for Mathematical and Physical Sciences, and the Solid State Chemistry and Polymers Program of the Division of Materials Research. ***