SBIR Phase I: Process for Production of Carbon Nanotubes from Re-Usable Catalytic Substrate

SBIR 第一阶段：从可重复使用的催化基质生产碳纳米管的工艺

• 批准号: 0232675
• 负责人: F. Carpenter
• 金额: $ 10万
• 依托单位: Nanomaterials Research LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0232675&HistoricalAwards=false
• 关键词: SBIR; Phase; Process; Production; Carbon

This Small Business Innovation Research (SBIR) Phase I project will develop a novel process for manufacturing carbon nanotubes (CNTs). There is great demand for CNTs from composite materials manufacturers, but current technology cannot yet provide large quantities of CNTs at an affordable price. Multi-wall carbon nanotubes will be grown from a re-usable catalytic substrate by pyrolysis of a carbon feedstock gas. The reusable catalytic substrate will provide control over the diameter of the CNTs in the range from 5nm to 100nm. After the CNTs have been grown from the catalytic substrate they will be physically removed (harvested), and the catalytic substrate can be reused. The resulting CNTs will be free of catalyst metal contamination and largely monodisperse. This process can be fully automated and is scalable to high volumes at very low cost. This project will prove the feasibility of this approach by demonstrating repeatable synthesis of carbon nanotubes from the same catalytic substrates. Nanotubes of different diameter will be produced and their structure will be characterized. The experimental data will be used to create a detailed analysis of the manufacturing economics for the approach and its competitiveness will be evaluated.The commercial and broader impacts of this technology would offer a major breakthrough in the cost/quality relationship to produce and sell loose CNTs. End customers will use CNTs in composite materials with improved structural integrity, and unique electrical and thermal performance. Potential customers are also focused on the use of carbon nanotubes for energy storage. Spin-off applications could include electromagnetic radiation shielding and field emission cathodes for flat panel displays.

这个小企业创新研究（SBIR）第一阶段项目将开发一种制造碳纳米管（CNT）的新工艺。 复合材料制造商对CNT有很大的需求，但目前的技术还不能以可承受的价格提供大量的CNT。 多壁碳纳米管将通过碳原料气体的热解从可重复使用的催化基底生长。可重复使用的催化基底将提供对CNT的直径在5 nm至100 nm范围内的控制。 在CNT已经从催化基底生长之后，它们将被物理地移除（收获），并且催化基底可以被重新使用。 所得CNT将不含催化剂金属污染物并且基本上是单分散的。 该过程可以完全自动化，并且可以以非常低的成本扩展到大批量。 该项目将通过展示从相同的催化基质可重复合成碳纳米管来证明这种方法的可行性。将产生不同直径的纳米管，并表征其结构。 实验数据将被用来创建一个详细的分析的制造经济的方法和它的竞争力将被评估。商业和更广泛的影响，这项技术将提供一个重大突破的成本/质量关系，生产和销售松散的碳纳米管。 最终客户将在复合材料中使用碳纳米管，以改善结构完整性和独特的电气和热性能。潜在客户也关注碳纳米管在储能方面的应用。 衍生产品的应用可包括电磁辐射屏蔽和平板显示器的场发射阴极。