Metathesis Routes to Nitrides and Nanotubes

氮化物和纳米管的复分解途径

• 批准号: 0073581
• 负责人: Richard Kaner
• 金额: $ 41.34万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2004-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0073581&HistoricalAwards=false
• 关键词: Metathesis; Routes; Nitrides; Nanotubes

The main objective of this project is to develop new routes to important materials by designing rapid solid-state methasis (exchanged) reactions that use appropriate additives such as ammonium chloride to control temperature and pressure. Systems to be synthesized include indium nitride and its solid solutions with gallium nitride and aluminum nitride, which are expected to luminesce across the entire visible range form red to violet and beyond. Also, cubic molybdenum nitride, a hydrodesulfurizaiton catalyst, will be synthesized, and new routes of carbon nanotubes will be explored and optimized through the control of reaction temperature where a computer program will be developed to determine maximum reaction temperatures based on thermodynamic data.%%%This project is aimed at the control of pressure and temperature in metathesis reactions for the synthesis of a number of industrially relevant materials such as carbon nanotubes, encapsulated metals, silicon nitride, cubic boron nitride and molybdenum nitride that are difficult to prepare. These materials all have interesting optical, mechanical or catalytic properties. The students involved in this research will learn synthetic and characterization techniques, and they will have an opportunity to collaborate with national laboratory and industrial scientists. This unique integration of research and education will help to make these students highly competitive in the job market

该项目的主要目标是通过设计使用适当添加剂（如氯化铵）控制温度和压力的快速固态甲烷（交换）反应，开发重要材料的新途径。 待合成的系统包括氮化铟及其与氮化镓和氮化铝的固溶体，预计它们将在整个可见光范围内发光，从红色到紫色甚至更高。 此外，还将合成立方氮化钼加氢脱硫催化剂，并通过控制反应温度来探索和优化碳纳米管的新路线，其中将开发基于热力学数据确定最高反应温度的计算机程序。该项目旨在控制复分解反应中的压力和温度，以合成一些难以制备的工业相关材料，如碳纳米管，封装金属，氮化硅，立方氮化硼和氮化钼。 这些材料都具有有趣的光学、机械或催化性能。 参与这项研究的学生将学习合成和表征技术，他们将有机会与国家实验室和工业科学家合作。 这种独特的研究和教育整合将有助于使这些学生在就业市场上具有高度竞争力