EAGER: Mattressene - A 3D Carbon Nanostructure Superlattice: Experimental and Theoretical Synthesis and Characterization

EAGER：Mattressene - 3D 碳纳米结构超晶格：实验和理论合成及表征

• 批准号: 1148936
• 负责人: Krishna Muralidharan
• 金额: $ 15万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1148936&HistoricalAwards=false
• 关键词: EAGER; Mattressene; 3D; Carbon; Nanostructure

NON-TECHNICAL DESCRIPTION: The principal objective of this work is the experimental fabrication of a new, technologically important, carbon-based nanostructured material referred to as mattressene. Structurally, mattressene consists of alternating single-layer graphene sheets connected to each other by parallel arrays of carbon nanotubes, and this regular, periodic arrangement of graphene and nanotubes enables mattressene to exhibit remarkable electronic, thermal and mechanical properties, making it applicable as a (i) high-speed, high-density semiconductor chip device, (ii) high-efficiency thermoelectric material capable of converting waste heat to electricity, (iii) thermal interface material for efficient and swift removal of heat in electronic devices and (iv) high-capacity reversible hydrogen storage in hydrogen fuel cells.TECHNICAL DETAILS: The experimental ability to synthesize a new, ordered, carbon-based nano-metamaterial- mattressene is being explored in this project. Mattressene consists of parallel sheets of graphene connected to each other by ordered, parallel arrays of same-length single-walled carbon nanotubes oriented orthogonal to the graphene sheets. The key elements of the chemical synthesis strategy, appropriately informed by high-accuracy density functional theory (DFT) calculations, consists of assembling a layered structure comprised of alternating graphene and functionalized-fullerene layers, followed by chemical attachment between graphene and fullerenes and conversion of the fullerenes to carbon nanotubes via cycloaddition reactions. The building blocks of mattressene consist of graphene and nanotubes, and that in combination with a 3-D periodic arrangement which can be suitably varied by adopting the layer by layer synthesis approach, enables mattressene to exhibit tunable electronic, thermal and thermoelectric properties. This tunability makes mattresene highly desirable and ideally suited for technological applications as semiconducting devices, efficient thermal transport materials and thermoelectric materials. Another significant impact of this project is the rigorous training of a graduate student in a multi-disciplinary environment spanning across many fields of science and engineering as well as allowing the student to get familiarized with advanced, cutting-edge experimental and theoretical research tools and techniques that are adopted in this work. A post-doctoral scholar and several undergraduate students are also engaged in this project.

非技术描述：这项工作的主要目标是一种新的，技术上重要的，基于碳的纳米结构材料，称为床垫。 Structurally, mattressene consists of alternating single-layer graphene sheets connected to each other by parallel arrays of carbon nanotubes, and this regular, periodic arrangement of graphene and nanotubes enables mattressene to exhibit remarkable electronic, thermal and mechanical properties, making it applicable as a (i) high-speed, high-density semiconductor chip device, (ii) high-efficiency thermoelectric material capable of converting waste heat to electricity, (iii) thermal interface material for efficient and swift removal of heat in electronic devices and (iv) high-capacity reversible hydrogen storage in hydrogen fuel cells.TECHNICAL DETAILS: The experimental ability to synthesize a new, ordered, carbon-based nano-metamaterial- mattressene is being explored in this project.床垫由平行的石墨烯片组成，这些石墨烯由相同的平行阵列相互连接，这些阵列的平行阵列是相同的单壁碳纳米管与石墨烯片的正交的。化学合成策略的关键要素是由高准确密度密度功能理论（DFT）计算适当告知的，包括组装由交替的石墨烯和功能化的富烯层组成的分层结构，然后在石墨烯和富勒烯之间进行化学固定以及富富烯之间的富勒烯与碳nanotubes cybon nanotubes通过Cycbobon loadions resconions resconions组成。床垫的构建块由石墨烯和纳米管组成，并结合3-D周期排列的结合，可以通过层合成方法采用该层，使床垫能够表现出可调的电子，热和热电特性。这种可调节性使孕妇高度期望，非常适合作为半导体设备，有效的热运输材料和热电材料的技术应用。该项目的另一个重要影响是在许多科学和工程领域的多学科环境中对研究生进行严格的培训，并允许学生熟悉这项工作中采用的先进，尖端的实验和理论研究工具和技术。 博士后学者和几位本科生也参与了该项目。