Functional Carbon Nano-skins: Integrating Nanostructured Oxides with Molecular Systems

功能性碳纳米皮：纳米结构氧化物与分子系统的集成

• 批准号: 1310293
• 负责人: Robert Hamers
• 金额: $ 40万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1310293&HistoricalAwards=false
• 关键词: Functional; Carbon; Nano; skins; Integrating

In this project, funded by the Macromolecular, Supramolecular, and Nanochemistry Program of the Chemistry Division, Prof. Robert Hamers of the University of Wisconsin-Madison and his students will integrate polymer chemistry with surface chemistry to make ultra-stable interfaces between metal oxide nanoparticles and molecular systems such as molecular photocatalysts and light-harvesting molecules. They will explore the synthesis and properties of functional "nano-skins" created on surfaces, using metal oxides such as TiO2 as model systems. In order to form robust layers, molecules bearing multiple reactive groups will be grafted to TiO2 surfaces; these will then be cross-linked to form two-dimensional surface nets in which each surface oligomer has many linkages to the surface. Electrochemically active species will then be linked to the net to form functional layers with novel electrochemical and photoelectrochemical properties. Fundamental properties such as electron transfer rates will be measured using surface-attached ferrocene groups. A variety of experimental measurements will be performed to characterize the chemical and physical properties of the layers in order to establish whether extensive lateral cross-linking within nanometer-thick molecular layers can lead to highly stable interfaces with novel electrochemical and photoelectrochemical properties. This project will provide graduate students, undergraduate students, and junior scientists with state-of-the-art training in the techniques of surface chemistry and other career skills necessary to become scientific leaders. Students will learn techniques of chemical synthesis, characterization of surfaces, and a variety of electrochemical and photoelectrochemical measurement techniques. They will also receive training in oral and written communication, ethics, and leadership. The research will provide important fundamental insights into charge-transfer processes within and through molecular layers at surfaces and will help to establish design rules for how to fabricate highly stable interfaces between inorganic materials and organic-based molecular structures. Inorganic-organic hybrid structures are of great interest in a range of existing and emerging commercial technologies, and the ability to make water-stable interfaces between molecules and metal oxides such as TiO2 would have both commercial and societal impact in areas such as renewable energy. The project will also impact society by providing opportunities for educational and outreach activities with a diversity of outside groups.

在这个项目中，由威斯康星大学 - 麦迪逊分校的罗伯特·哈默斯（Robert Hamers）教授和他的学生资助，由大分子，超分子和纳米化学计划资助，他的学生将与表面化学相结合，以使金属氧化物Nanoparticles和Molecular Systems-Molocular Photocular Photocular Photocarysproughares and Surtable Chemistion与表面化学整合。 他们将使用金属氧化物（例如TiO2作为模型系统）在表面上创建的功能“纳米金”的合成和特性。 为了形成坚固的层，将携带多个反应性基的分子移植到TiO2表面。然后将它们交联以形成二维表面网，其中每个表面低聚物与表面有许多链接。然后，电化学活性物种将与网络相连，以形成具有新型电化学和光电化学特性的功能层。基本特性（例如电子传输速率）将使用表面附加的二茂密组来测量。将进行各种实验测量，以表征层的化学和物理特性，以确定纳米厚的分子层中是否具有广泛的横向交联是否可以导致具有新型电化学和光电化学特性的高度稳定的接口。该项目将为研究生，本科生和初级科学家提供表面化学技术和成为科学领导者所需的其他职业技能的最先进培训。学生将学习化学合成，表面表征以及各种电化学和光电化学测量技术的技术。他们还将接受口头和书面交流，道德和领导力的培训。这项研究将为表面上和分子层内和通过分子层内和通过分子层内的电荷转移过程提供重要的基本见解，并有助于建立设计规则，以制定如何在无机材料和基于有机的分子结构之间建立高度稳定的接口。无机有机杂种结构在一系列现有和新兴的商业技术中引起了极大的兴趣，并且能够在分子和金属氧化物（例如TiO2）之间制造水稳定的界面，例如在可再生能源等领域的商业和社会影响。该项目还将通过提供各种外部团体的教育和外展活动的机会来影响社会。