An Interdisciplinary Approach to Understanding the Growth of Nanoporous Materials

了解纳米多孔材料生长的跨学科方法

• 批准号: 0103010
• 负责人: Peter Monson
• 金额: $ 100万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0103010&HistoricalAwards=false
• 关键词: Interdisciplinary; Approach; Understanding; Growth; Nanoporous

AbstractCTS-0103010P. Monson, U of Massachusetts Amherst This proposal was submitted in response to solicitation "Nanoscale Science and Engineering (NSF 00-119)" and requests support for an interdisciplinary research program concerned with understanding the growth of nanoporous materials- focusing on zeolitic materials. A research program in this area will have immediate impact on an enormous worldwide effort for developing porous materials with properties tailored at the nanoscale for applications such as catalysis or separations. Moreover, a central feature in the growth of such materials is the assembly of supramolecular precursor particles to form complex organic-inorganic structures with crystalline order. This mechanism is paradigmatic for the synthesis of a whole range of new materials, ranging from substrates for quantum confinement and laser applications to biomaterial implants with controlled porosity and nanostructure.The proposal has its origin in a collaboration among some of the PI's on the problem of crystal growth of silicalitc-1 zeolite, in which important features of a growth mechanism involving the formation and assembly of subcolloidal zeolite particles were elucidated. The collaboration featured both experimental work and modeling of the growth process. As this work developed it became clear that further progress would be greatly enhanced with a larger research team. In particular, it was clear that expertise was required in detailed atomistic modeling of the growth process as well as in characterization by light scattering and atomic force microscopy. The NSF NIRT initiative has created an opportunity for this research team to come to full fruition. Our interdisciplinary team involves researchers in four departments at the Universities of Massachusetts and Delaware, partnerships with companies at the forefront of applications of nanoporous materials and collaboration with a government laboratory.The project is divided into two main research areas: Synthesis, Purification and Structure of Subcolloidal Particles:Assembly of Subcolloidal Particles and Silicalite Crystal GrowthIn addition to elucidating fundamental aspects of zeolite growth, we anticipate that in the longer term our research will lead to novel assembly methods and the development of new materials grown by assembly of subcolloidal zeolite particles. Each of our research areas will feature both experimental and modeling investigations. A spectrum of modeling techniques will be employed spanning length scales from the atomistic level, required to understand the formation and structure of subcolloidal zeolite particles, to the mesoscopic level, required to understand the crystal growth habit of zeolite materials. The research program has substantial educational component including: the development of new graduate courses on nanoscale materials and on computational materials science at both partner Universities, industrial internships for graduate students and postdoctoral scholars, as well as involvement of undergraduate students in the research.

摘要CTS-0103010 P。蒙森，马萨诸塞州阿默斯特大学本提案是应“纳米尺度科学与工程（NSF 00-119）”的征集而提交的，并请求支持一个与理解纳米多孔材料的生长有关的跨学科研究计划-重点是沸石材料。这一领域的研究计划将对全球范围内开发具有纳米级性能的多孔材料的巨大努力产生直接影响，如催化或分离。此外，这种材料生长的中心特征是超分子前体颗粒的组装，以形成具有晶体有序的复杂有机-无机结构。这一机制是一个范例，用于合成一系列新材料，从基板的量子限制和激光应用的生物材料植入物与控制的孔隙率和纳米结构。该建议有其起源于合作的一些PI的晶体生长的问题silicalitc-1沸石，其中阐明了涉及亚胶体沸石颗粒的形成和组装的生长机理的重要特征。此次合作的特点是实验工作和生长过程建模。随着这项工作的发展，很明显，一个更大的研究团队将大大提高进一步的进展。特别是，很明显，需要专门知识，在详细的原子模型的生长过程，以及在表征光散射和原子力显微镜。NSF NIRT计划为这个研究团队创造了一个取得丰硕成果的机会。我们的跨学科团队包括马萨诸塞州和特拉华州大学四个系的研究人员，与纳米多孔材料应用前沿的公司合作，并与政府实验室合作。该项目分为两个主要研究领域：亚胶体颗粒的合成，纯化和结构：亚胶体颗粒的组装和硅质岩晶体生长除了阐明沸石生长的基本方面外，我们预计，从长远来看，我们的研究将导致新的组装方法和通过亚胶体沸石颗粒组装生长的新材料的开发。我们的每个研究领域都将以实验和建模调查为特色。一系列的建模技术将采用跨越从原子水平的长度尺度，需要了解亚胶体沸石颗粒的形成和结构，到介观水平，需要了解沸石材料的晶体生长习性。该研究计划具有实质性的教育组成部分，包括：在两所合作大学开发新的纳米材料和计算材料科学研究生课程，为研究生和博士后学者提供工业实习，以及本科生参与研究。