SBIR PHASE II: Economic and Solvent-Free Separation/ Purification of Fullerenes

SBIR 第二阶段：经济且无溶剂的富勒烯分离/纯化

• 批准号: 9704158
• 负责人: Timothy Lowe
• 金额: $ 15万
• 依托单位: Materials and Electrochemical Research Corporation (MER)
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-01 至 2000-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9704158&HistoricalAwards=false
• 关键词: SBIR; PHASE; II; Economic; Solvent

This Small Business Innovation Research Phase II project is to extend the Phase I results to optimize a unique temperature gradient vacuum sublimation process which will significantly reduce the cost of fullerene purification. Phase I demonstrated that high purity C60 (99.8%) can be produced by the solvent-free process. The Phase II program will optimize the purification process by investigating a large number of processing variables such as fullerene mean-free path, unconverted re-distributed fullerenes, temperature distribution, geometric dimension, etc. Two different temperature gradient vacuum sublimation systems, i.e., direct sublimation and sublimation through a porous bed, will be designed and utilized in the investigations. It is anticipated that the Phase II program will successfully develop a solvent-free purification process to produce pure C60 at 2 to 10 % of the current cost. Fullerenes are materials that have been demonstrated to have near-term applications in superconductors, nonlinear optics, polymers, gas storage for fuel and batteries, diamond nucleation and synthesis, low porosity pure carbon composites and fibers, and three-dimensional organic synthesis.

这个小型企业创新研究第二阶段项目是为了扩展第一阶段的结果，以优化独特的温度梯度真空升华过程，这将显着降低富勒烯纯化的成本。 第一阶段表明，高纯度的C60（99.8%）可以通过无溶剂的方法生产。 第二阶段计划将通过研究大量的工艺变量来优化纯化过程，如富勒烯平均自由程、未转化的再分布富勒烯、温度分布、几何尺寸等。直接升华和通过多孔床升华，将被设计和使用的调查。 预计第二阶段计划将成功开发一种无溶剂纯化工艺，以目前成本的2%至10%生产纯C60。 富勒烯是已被证明在超导体、非线性光学、聚合物、燃料和电池的气体储存、金刚石成核和合成、低孔隙率纯碳复合材料和纤维以及三维有机合成中具有近期应用的材料。