RUI: Exploring Synthesis, Tailoring Structure, Evaluating Properties, and Enabling Patterning of Surface-Anchored Framework Assemblies

弗曼大学化学系的Mary Elizabeth Anderson教授受到化学系大分子、超分子和纳米化学（MSN）项目的支持，研究表面锚定金属有机框架和共价有机框架的组装。这些新兴材料在广泛技术中的应用潜力已经导致成千上万的这些框架系统被合成，通常是微尺度粉末。在本项目中，研究并优化了将这些材料组装成纳米级薄膜的合成条件，以及组装后对薄膜进行化学改性的条件。了解薄膜形成的机制对于有效地制造利用这些材料特性的设备至关重要。最终目标是开发图像化方法和结构特征，这些方法和结构特征对于将这些表面锚定框架整合到实际应用中的器件架构中是必要的，例如气体存储、化学催化、化学传感和能量存储。该项目招收本科生，培养未来的科学技术科学家，在化学、材料科学、物理和工程的界面，在弗曼大学一个研究丰富的本科文科设置。本研究的多个方面整合在整个化学课程中，并作为基于课程的学生研究项目。该项目研究了薄膜中金属有机框架（mof）和共价有机框架（COFs）自下而上溶液相组装的主要化学和物理机制。本研究项目的目标是为集成到器件体系结构中的表面锚定框架量身定制和模式化。实验条件是通过评估表面锚定组件的性质，如膜形态和厚度，孔隙率，润湿性，附着力和变形探索。该评价的核心是通过原子力显微镜、椭偏、接触角测量、红外和拉曼光谱、石英晶体微天平和循环伏安法进行表征。采用非常规光刻技术，如压印光刻和微接触印刷，开发表面固定框架的方法。这一结果有望对表面科学、工程科学、纳米技术和材料化学等领域做出贡献。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Professor Mary Elizabeth Anderson of the Chemistry Department at Furman University is supported by the Macromolecular, Supramolecular, and Nanochemistry (MSN) Program of the Division of Chemistry to investigate the assembly of surface-anchored metal-organic frameworks and covalent organic frameworks. The potential for the application of these emerging materials in a wide range of technologies has led to thousands of these framework systems being synthesized, typically as microscale powders. In this project, the synthetic conditions for tailoring the assembly of these materials as nanoscale films, as well as for the chemical modification of the films post-assembly are investigated and optimized. Understanding the mechanisms of film formation is crucial for the effective fabrication of devices that harness the properties of these materials. The ultimate goal is to develop patterning methods and structural features that are necessary for the incorporation of these surface-anchored frameworks within device architectures for practical applications, such as gas storage, chemical catalysis, chemical sensing, and energy storage. The project engages undergraduate students and trains future scientists in science and technology at the interface of chemistry, material science, physics, and engineering in a research-rich undergraduate liberal arts setting at Furman University. Multiple facets of this research are integrated throughout the chemistry curriculum and incorporated as course-based student research projects.The project investigates the major chemical and physical mechanisms that direct the bottom-up solution-phase assembly of metal-organic frameworks (MOFs) and covalent-organic frameworks (COFs) in thin films. The objective of this research project is to tailor and pattern the surface-anchored frameworks for integration into device architectures. Experimental conditions are explored by evaluating properties of the surface-anchored assemblies, such as film morphology and thickness, porosity, wettability, adhesion, and deformation. Central to this evaluation is characterization by atomic force microscopy, ellipsometry, contact angle goniometry, infrared and Raman spectroscopy, quartz crystal microbalance, and cyclic voltammetry. Method development is undertaken to pattern surface-anchored frameworks by nonconventional lithographic techniques, such as imprint lithography and microcontact printing. The results are expected to contribute to the fields of surface science, engineering science, nanotechnology, and material chemistry.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.