Synthesis and Assembly 2D Heterostructured Hybrid Stacks

合成和组装 2D 异质结构混合堆栈

• 批准号: 2200366
• 负责人: Vladimir Tsukruk
• 金额: $ 52万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2200366&HistoricalAwards=false
• 关键词: Synthesis; Assembly; 2D; Heterostructured; Hybrid; Synthesis; Assembly; 2D; Heterostructured; Hybrid

With the support of the Macromolecular, Supramolecular and Nanochemistry (MSN) program in the Division of Chemistry, Professors Vladimir Tsukruk and Zhiqun Lin of Georgia Institute of Technology will develop novel synthetic approaches to two-dimensional nanosheets and study the assembly and properties of the nanosheet stacks. Due to special Lego-like staggering of metal atoms and organic molecular species with controlled gaps between individual layers, these 2D stacks may possess useful ion transport, charge storage, and interfacial chemical properties for energy storage applications as for example might find application in lightweight battery technology. The research project will provide interdisciplinary research training to graduate and undergraduate students, including students from underserved groups. A life and career mini-workshop series will be established to provide opportunities for graduate and undergraduate students to interact with and learn from the experience of Professor Tsukruk’s former students and post-docs working in industry, national laboratories, and academia.Specifically, this collaborative research project by the Tsukruk and Lin laboratories will focus on the study of nanosheets of MXenes (with a general formula of Mn+1XnTx, where M is a transition metal, X is carbon and/or nitrogen, Tx is the surface functional group (e.g., OH, O or F), and n=1, 2 or 3) and metal oxides (V2O5, SnO2 and NiO). The research team will develop synthetic approaches to MXene/MOx nanosheets supported by organized reactive templates with oxidation stability, gap control, and assembly abilities. The integration of polymers and organic species with inorganic nanosheets may result in a controllable interlayer space and increased ion accessibility and structural stability. Three major research task of this project include: 1) synthesis of functionalized MXenes with tailored surface chemistry, symmetry, and dimensions by focusing on the rational design of heterostructured 2D MX/MOx binary and ternary stacks with functionalized nanosheets as pre-programmed reactive templates; 2) assembly and fabrication of both horizontal stacks and vertically aligned stacks composed of organic-inorganic composite nanosheets; and 3) real-time monitoring of ion transport by utilizing unique methods for in-situ neutron reflectivity and grazing-angle wide-angle X-ray scattering with in-situ high-resolution scanning probe microscopy for understanding fundamental characteristics of interfacial chemistry, confined ion transport, ion-walls interactions, and organization-transport relationships.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.

在化学系中的大分子，超分子和纳米化学（MSN）计划的支持下，佐治亚州技术研究所的弗拉基米尔·库克鲁克（Vladimir Tsukruk）和Zhiqun Lin将开发出新颖的合成方法，用于二维纳米片，并研究nanosheeteet stack sacks of nanosheet sacks sacks and andsbly nanosheets。由于特殊的LEGO样金属原子和有机分子物种在各个层之间具有受控间隙，因此这些2D堆栈可能会假设有用的离子传输，电荷存储和用于储能应用的界面化学特性，例如，可以在轻型电池技术中找到应用。该研究项目将为研究生和本科生提供跨学科的研究培训，包括服务不足的小组的学生。将建立一个生活和职业迷你工作工厂系列，为毕业生和本科生提供机会与Tsukruk教授的经验和学习，从事工业，国家实验室和学术界工作的以前的学生和事后的经验，具体来说，特别是Tsukruk和Lin Laboratories的合作研究项目，将与Nanosheets的一般性研究（Mxenest of Mxenest of Mxenests of Mxeness of Mxeness of Mxeness）， M是一种过渡金属，X是碳和/或氮，TX是表面官能团（例如，OH，O或F），n = 1、2或3）和金属氧化物（V2O5，SNO2和NIO）。研究小组将开发合成方法，以通过有组织的反应性模板具有氧化稳定性，间隙控制和组装能力支持MXENE/MOX纳米片。聚合物和有机物种与无机纳米片的整合可能会导致控制器空间，并增加离子可及性和结构稳定性。该项目的三项主要研究任务包括：1）通过关注异质结构的2D MX/MOX二元和三元堆栈的合理设计，具有量身定制的表面化学，对称性和尺寸的功能化MXENE，并具有功能化的纳米片，作为预先编程的电力模板； 2）组装和制造水平堆栈和由有机无机复合纳米片组成的垂直排列堆栈； 3）通过利用独特的中性反射率和放牧角度的X射线散射来实时监测离子传输的实时监控，并具有原位高分辨率的高分辨率扫描探针显微镜，以了解交互式化学的基础特征使用基金会的智力优点和更广泛的影响评估标准进行评估。