Nanostructured materials for catalysis, separation and sensing

用于催化、分离和传感的纳米结构材料

• 批准号: 106078-2008
• 负责人: Sayari, Abdelhamid
• 金额: $ 6.27万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=475400
• 关键词: Nanostructured; materials; catalysis; separation; sensing

Periodic mesoporous materials (PMMs) are prepared using surfactants and polymers as supramolecular templates. They exhibit high surface area, and exquisitely ordered pore structure with adjustable sizes from 2 to ca. 10 nm in diameter. Since the discovery of the first periodic mesoporous silicas in early nineties, our group made significant contributions to the development of this field. One of our most important achievements was the discovery of an innovative method to expand in a controlled manner the pore size and volume of mesoporous silica from typically 3.5 nm and 0.8 cm3/g up to unprecedented 25 nm and 3.6 cm3/g without loss of surface area (> 1000 m2/g). One of the major thrusts of the proposed research is the rational design of mesoporous (more generally nanostructured) materials, their preparation, characterization and applications in such areas as catalysis, separation and chemical sensing.

以表面活性剂和聚合物为超分子模板制备了周期性介孔材料。它们具有高的比表面积和精细有序的孔结构，尺寸可从2到约10 μ m。直径约10 nm。自90年代初发现第一个周期性介孔氧化硅以来，我们小组为这一领域的发展做出了重大贡献。我们最重要的成就之一是发现了一种创新的方法，以可控的方式将中孔二氧化硅的孔径和体积从典型的3.5 nm和0.8 cm 3/g扩大到前所未有的25 nm和3.6 cm 3/g，而不损失表面积（> 1000 m2/g）。拟议的研究的主要推力之一是介孔（更一般的纳米结构）材料的合理设计，它们的制备，表征和在催化，分离和化学传感等领域的应用。