Inorganic Crystals with Extra-large Pores

该项目的重点是设计固态化学策略，以生产定制的多孔晶体。新组合物的合成和主客体化学将发展以推进多孔材料的研究，重点如下：（a）将多孔性与半，光导和非线性光学性质相结合的框架，（B）超大孔的合成（定义：10-20 A直径）框架，其将用于生物相关分子的分离和催化转化（药物）和大石油馏分，和（c）有限的分子空间的不寻常的组成和静电势能够主办大会的活性分子复合物和集群。由于该项目的性质涉及溶液化学和固态化学，因此它为本科生和研究生提供了一个难得的机会，让他们体验并成为这两个领域材料合成，表征和特性的专家。基于碳和氧化物组合物的多孔材料已经在传感、气体分离、催化、环境净化（水净化和放射性离子去除）、纳米技术以及最近在氢和甲烷的储存和运输中发现了广泛的应用。例如，沸石硅酸盐和铝硅酸盐作为形状和尺寸选择性吸附剂、离子交换剂和催化剂的巨大重要性反映在它们在全球经济中的3500亿美元部门。这项研究的跨学科性质非常适合在对美国保持全球行业领导地位的能力越来越重要的领域培养学生。

This project is focused on designing solid state chemical strategies that will produce tailor-made porous crystals. Synthetic and host-guest chemistry of new compositions will be developed to advance porous materials research with the following emphasis: (a) frameworks combining porosity with semi-, photo-conductive, and nonlinear optical properties, (b) synthesis of extra-large pore (defined: 10-20 A diameter) frameworks,which will be useful in the separation and catalytic conversion of bio-related molecules (pharmaceuticals) and large petrolewn fractions, and (c) confined molecular space of unusual composition and electrostatic potential capable of hosting the assembly of active molecular complexes and clusters. Because the nature of this project involves both solution chemistry and solid-state chemistry, it provides a rare opportunity for undergraduate and graduate students to experience and become experts in the synthesis, characterization and properties of materials in both arenas. Porous materials based on carbon and oxide compositions have found wide-spread applications in sensing, gas separation, catalysis, environirnental cleanup (water purification and radioactive ion removal), nanotechnology, and more recently in hydrogen and methane storage and transport. For example, the enormous importance of zeolitic silicates and aluminosilicates as shape- and size-selective adsorbents, ion- exchangers and catalysts is reflected by their 350 billion US dollar sector of the global economy. The interdisciplinary nature of this research is ideally suited for training students in areas that are becoming increasingly critical to the US ability to maintain its leadership in global industries.