RUI: Enabling Rational Design of Smart Interfaces Incorporating Metal-Organic Coordinated Assemblies

RUI：实现结合金属有机协调组件的智能接口的合理设计

• 批准号: 1508244
• 负责人: Mary Anderson
• 金额: $ 20.9万
• 依托单位: Hope College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-06-15 至 2018-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1508244&HistoricalAwards=false
• 关键词: RUI; Enabling; Rational; Design; Smart

RUI: Enabling Rational Design of Smart Interfaces Incorporating Metal-Organic Coordinated Assemblies (CHE-1508244)Mary E. Anderson, Hope CollegePublic AbstractMetal-organic frameworks (MOFs) are crystalline, porous materials with extremely high surface areas that exhibit great potential for chemical sensing, reaction catalysis, and gas storage. For many of these applications, the incorporation of MOF thin films grown directly on supporting materials is required. To effectively fabricate devices with smart interfaces that harness the properties of these MOF materials, it is crucial to understand the fundamentals of film formation. This research systematically investigates thin film MOF growth and develops design rules for low-energy processing techniques on a variety of technologically-relevant substrates. These design rules, for tailoring film structure and composition, are utilized 1) to tune the optical, electrical, and mechanical properties of the film and 2) to develop fabrication techniques that integrate MOF thin films into cutting-edge technologies for chemical sensing and harvesting solar energy. Undergraduate students are actively engaged in all aspects of the research, providing them with experience in the interdisciplinary areas of materials chemistry, surface science, and modern analytical instrumentation. Technical AbstractWith this award the Macromolecular, Supramolecular and Nanchemistry Program of the NSF Chemistry Division supports the research of Dr. Anderson at Hope College to investigate the formation of surface-anchored metal-organic frameworks (SurMOF) for integration directly into device architectures for chemical sensing and photonic applications. Film formation is studied for different systems with incrementally increasing complexity (i.e. HKUST-1, MOF-14, MOF-5, IRMOF-3). Effects of deposition variables such as temperature, time, and deposition methods (i.e. layer-by-layer, co-deposition, seeded deposition) are investigated. Studies are extended to understand deposition on different substrates of technological relevance, such as oxide materials (i.e. SiO2, ITO, Al2O3) and flexible polymeric materials. Rational design rules for growth initiation as well as inhibition are determined. Scanning probe microscopy (SPM) and surface-specific spectroscopies (i.e. ellipsometry, FT-IR) are used to characterize SurMOF film growth to determine the effect of deposition conditions with particular focus on foundational layers forming at the substrate-film interface. Mechanical, electrical, and optical properties of films are evaluated using advanced SPM modes (i.e. quantitative nanomechanical mapping, conductive probe), electrochemistry (i.e. cyclic voltammetry, chronocoulometry), and spectroelectrochemical characterization. By following developed design rules, understanding material properties, and employing membrane-templating techniques, this research integrates SurMOF films as smart interfaces into test-bed structures fabricated for chemical sensing and solar energy harvesting.

金属有机框架（mof）是一种晶体状多孔材料，具有极高的表面积，在化学传感、反应催化和气体储存方面表现出巨大的潜力。对于许多这些应用，需要直接在支撑材料上生长的MOF薄膜的结合。为了有效地制造具有智能接口的设备，利用这些MOF材料的特性，了解薄膜形成的基本原理至关重要。本研究系统地研究了薄膜MOF的生长，并在各种技术相关的衬底上开发了低能量加工技术的设计规则。这些设计规则用于调整薄膜的结构和组成，1)调整薄膜的光学、电学和机械性能，2)开发制造技术，将MOF薄膜集成到化学传感和收集太阳能的尖端技术中。本科生积极参与各个方面的研究，为他们提供材料化学，表面科学和现代分析仪器等跨学科领域的经验。技术摘要：美国国家科学基金会化学部的大分子、超分子和纳米化学项目通过该奖项支持霍普学院安德森博士的研究，研究表面锚定金属有机框架（SurMOF）的形成，以直接集成到化学传感和光子应用的器件结构中。研究了复杂性逐渐增加的不同体系（即HKUST-1、MOF-14、MOF-5、IRMOF-3）的成膜过程。研究了沉积变量如温度、时间和沉积方法（即逐层、共沉积、种子沉积）的影响。研究扩展到了解与技术相关的不同衬底上的沉积，例如氧化物材料（即SiO2， ITO, Al2O3）和柔性聚合物材料。确定了生长起始和抑制的合理设计规则。扫描探针显微镜（SPM）和表面特异性光谱（即椭偏仪，FT-IR）用于表征SurMOF薄膜的生长，以确定沉积条件的影响，特别关注衬底-薄膜界面形成的基底层。使用先进的SPM模式（即定量纳米力学映射，导电探针），电化学（即循环伏安法，计时库洛法）和光谱电化学表征来评估薄膜的机械，电气和光学性质。通过遵循已开发的设计规则，了解材料特性，并采用膜模板技术，本研究将SurMOF薄膜作为智能界面集成到用于化学传感和太阳能收集的试验台结构中。

项目成果

Thermoelectric Performance of Tetrahedrite Synthesized by a Modified Polyol Process

• DOI: 10.1021/acs.chemmater.6b04950
• 发表时间: 2017-02
• 期刊: Chemistry of Materials
• 影响因子: 8.6
• 作者: Daniel P. Weller;Daniel L. Stevens;Grace E. Kunkel;Andrew M. Ochs;Cameron F. Holder;D. Morelli;M. E. Anderson