Disordered and Lower Dimensional Porous Materials

该奖项由化学特别项目办公室颁发。 继续支持博士合作研究司。 密歇根州立大学的Pinnavaia、Kanatzidas、Billinge、Mahanti和Thorpe 大学NEC研究所的斯图尔特索林博士也参加了这次会议。 院这项研究广泛涉及化学、物理和 有序和低维纳米多孔的计算方面 基于氧化物和硫属化物的材料。具体研究内容 将要研究的是合成新的金属氧化物（二氧化硅， 氧化锆和二氧化钛）分子筛的合成 或聚环氧乙烷表面活性剂模板;表面活性剂合成 模板，新的多孔硫属化物相的基础上柱撑的 层状金属硫化物和硒化物;实验X射线衍射和 开放框架中无序和扩散的计算研究 介观结构.用c轴X射线衍射法研究网络刚度 纳米多孔硅酸盐的非弹性中子散射 网络;以及，磁过渡的合成和表征 金属层状双氢氧化物。金属的合成研究 氧化物将导致具有受控相的分子筛， 从六边形或立方体到蠕虫状通道图案的形态。 针对层状金属合成的硫族化合物研究 具有金属簇柱的硫族化物相将提供新的 具有沸石形状选择性的半导体催化剂。 孔径在1.0-10 nm范围内的纳米多孔材料提供了 为吸附剂的合理设计提供了令人兴奋的机会， 用于环境修复的分子催化剂 分离和各种基于大分子的工业过程 转变半导体纳米多孔结构具有很大的前景 对于传感器的制造，有机-无机杂化材料， 固态器件。这些纳米孔的性质和性能 材料由长和短范围无序支配， 孔隙空间的维数。这种结合了实验和 计算研究将有助于阐明基础化学， 这些复杂材料的物理特性。

This award is made in the Office of Special Projects of the Chemistry Division for continuing support of the collaborative research of Drs. Pinnavaia, Kanatzidas, Billinge, Mahanti and Thorpe at Michigan State University. Also participating is Dr. Stuart Solin of the NEC Research Institute. The research deals broadly with chemical, physical and computational aspects of ordered and lower dimensional nanoporous materials based on oxides and chalcogenides. Specific research elements that will be investigated are the synthesis of new metal oxide (silica, zirconia and titania) molecular sieves by self-assembly on neutral amine or polyethylene oxide surfactant templates; synthesis by surfactant templating, of new porous chalcogenide phases based on the pillaring of lamelear metal sulfides and selenides; experimental X-ray diffraction and computational studies of disorder and diffusion in open framework mesostructures; studies of network stiffness by c-axis X-ray diffraction and diffusion by inelastic neutron scattering of nanoporous silicate networks; and, the synthesis and characterization of magnetic transition metal layered double hydroxides. The synthetic studies of the metal oxides will lead to molecular sieves with controlled phases and morphologies ranging from hexagonal or cubic to worm-like channel motifs. The chalcogenide studies directed towards the synthesis of layered metal chalcogenide phases with metal cluster pillars will provide new semiconducting catalysts with the shape selectivity of zeolites. Nanoporous materials with pore sizes in the 1.0-10 nm range offer exciting opportunities for the rational design of adsorbents and catalysts for applications in environmental remediation, molecular separations and a variety of industrial processes based on large molecule transformations. Semiconducting nanoporous structures hold great promise for the fabrication of sensors, organic -inorganic hybrid materials and solid state devices. The properties and performance of these nanoporous materials are dominated by long and short range disorder and the dimensionality of the pore space. This combined experimental and computational study will help elucidate the fundamental chemistry and physics of these complex materials.