New Strategy for Synthesis of Atomically-Precise Graphene Nanoribbons
合成原子级精确石墨烯纳米带的新策略
基本信息
- 批准号:2002912
- 负责人:
- 金额:$ 42万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-08-01 至 2023-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
With this award, the Macromolecular, Supramolecular and Nanochemistry Program in the Division of Chemistry is supporting Professor Guangbin Dong at the University of Chicago to develop new approaches for preparing atomically-precise, water-soluble graphene nanoribbons. These nanoribbons are strips (50-100 thousand times thinner than a human hair) of graphene: a sheet of carbon atoms arranged in a rigid structure that resembles chicken wire. Graphene nanoribbons come in two different structural forms, armchair and zigzag. Armchair graphene nanoribbons have emerged as attractive organic materials for potential applications in high-speed, light-weight and flexible electronic devices. Zigzag graphene nanoribbons represent promising materials for developing efficient spintronic (spin-electronic) devices. To date, the efficient and practical synthesis of water-soluble and processable graphene has not been possible. The Dong group is combining physical organic chemistry knowledge with advanced tools of transition-metal catalysis to overcome the synthetic challenges and the processability problem. The development of scalable synthetic approaches for the production of pure forms of armchair and zigzag nanoribbons opens the way for novel applications of these materials in nanoelectronics, spintronic and quantum computing devices. During the course of this research, the Dong group is actively participating in the Leadership Alliance Summer Research Program to encourage diverse groups of minority undergraduate students to explore careers in science and engineering. The Dong group is also actively engaged in the University of Chicago's graduate student “ChiS&E” program providing educational outreach activities to students from local public middle schools.This research project seeks to offer efficient and scalable synthetic approaches for preparing atomically-precise, water-soluble armchair and zigzag graphene nanoribbons (aGNRs and zGNRs) that could be ultimately used in high performance electronic and spintronic devices. The objectives are to realize solution-phase synthesis of aGNRs and zGNRs with precisely installed piperazine side chains. The key synthetic challenge is to exploit the newly developed palladium/norbornene (Pd/NBE) catalysis to prepare these unique monomers for GNR synthesis. Compared to the existing approaches of GNR synthesis, the merits of the new strategies include: monomers that are prepared in a streamlined manner from commercially available chemicals; redundant bulky side chains that are avoided for better imaging of the material edge structures; and products that are expected to exhibit high solubility and processability in aqueous solutions. The successful implementation of the research may address two long-standing challenges: synthesis of water-soluble GNRs and solution-phase preparation of zGNRs, which are critical factors for solution processability of these materials and the development of graphene-based spintronic devices. The research facilitates the physical and theoretical studies of these intriguing materials, as many of those aGNRs and zGNRs may be made for the first time in the lab and then used to validate or examine various theoretical models and hypotheses proposed previously by physicists and physical chemists. The knowledge obtained from these investigations may improve our understanding of these graphene-like one-dimensional polymers. This, in turn, may further inspire and stimulate the development of other new conjugated organic semiconducting materials.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.
有了这个奖项,化学系的大分子,超分子和纳米化学项目正在支持芝加哥大学的董广斌教授开发制备原子级精确的水溶性石墨烯纳米带的新方法。 这些纳米带是石墨烯条(比人类头发细5万到10万倍):一片碳原子排列在一个类似铁丝网的刚性结构中。石墨烯纳米带有两种不同的结构形式,扶手椅和锯齿形。 扶手椅型石墨烯纳米带已成为一种有吸引力的有机材料,在高速、轻质和柔性电子器件中具有潜在的应用。 锯齿形石墨烯纳米带代表了用于开发高效自旋电子(自旋电子)器件的有前途的材料。 迄今为止,水溶性和可加工的石墨烯的有效和实用的合成还不可能。 Dong集团将物理有机化学知识与过渡金属催化的先进工具相结合,以克服合成挑战和加工问题。 开发可扩展的合成方法来生产纯形式的扶手椅和锯齿形纳米带,为这些材料在纳米电子学、自旋电子学和量子计算设备中的新应用开辟了道路。 在这项研究过程中,Dong小组积极参与领导力联盟夏季研究计划,以鼓励不同群体的少数族裔本科生探索科学和工程职业。 此外,Dong集团还积极参与了芝加哥大学的研究生项目“ChiS E”,为当地公立中学的学生提供教育推广活动。该研究项目旨在提供高效和可扩展的合成方法,以制备原子级精确的水溶性扶手椅和锯齿形石墨烯纳米带(aGNRs和zGNRs),最终用于高性能电子和自旋电子器件。目标是实现具有精确安装的哌嗪侧链的aGNRs和zGNRs的溶液相合成。关键的合成挑战是利用新开发的钯/异戊二烯(Pd/NBE)催化剂来制备这些独特的单体用于GNR合成。与现有的GNR合成方法相比,新策略的优点包括:以流线型方式从市售化学品制备单体;避免多余的庞大侧链,以更好地成像材料边缘结构;以及预期在水溶液中表现出高溶解度和可加工性的产品。该研究的成功实施可以解决两个长期存在的挑战:水溶性GNRs的合成和zGNRs的溶液相制备,这是这些材料的溶液加工性和石墨烯基自旋电子器件开发的关键因素。这项研究促进了这些有趣材料的物理和理论研究,因为许多aGNR和zGNR可能是首次在实验室中制造,然后用于验证或检查物理学家和物理化学家以前提出的各种理论模型和假设。从这些调查中获得的知识可以提高我们对这些石墨烯类一维聚合物的理解。 该奖项反映了NSF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。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Guangbin Dong其他文献
Cu(I)-Catalyzed Chemoselective Coupling of Cyclopropanols with Diazo Esters: Ring-Opening C-C Bond Formations
Cu(I) 催化环丙醇与重氮酯的化学选择性偶联:开环 C-C 键形成
- DOI:
10.1002/anie.201612138 - 发表时间:
2017 - 期刊:
- 影响因子:0
- 作者:
Hang Zhang;Guojiao Wu;Heng Yi;Tong Sun;Bo Wang;Yan Zhang;Guangbin Dong;Jianbo Wang - 通讯作者:
Jianbo Wang
Programmable Ether Synthesis Enabled by Oxa-Matteson Reaction.
通过 Oxa-Matteson 反应实现可编程醚合成。
- DOI:
10.1021/jacs.2c03621 - 发表时间:
2022 - 期刊:
- 影响因子:15
- 作者:
Qiqiang Xie;Guangbin Dong - 通讯作者:
Guangbin Dong
An unusual oxidant-free transfer dehydrogenation of carboxylic acids
- DOI:
10.1016/j.trechm.2024.08.007 - 发表时间:
2024-11-01 - 期刊:
- 影响因子:
- 作者:
Yin Xu;Rui Zhang;Bo Zhou;Guangbin Dong - 通讯作者:
Guangbin Dong
ISW (Improved Super-Elastic Ti-Ni Alloy Wire) for Non-extraction Treatment of Adult Case with Linguoversion of Bilateral Lower Second Premolars
ISW(改良超弹性钛镍合金丝)非拔牙治疗成人双侧下第二前磨牙舌侧翻病例
- DOI:
10.30036/tjo.201012.0003 - 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
Guangbin Dong;Yuan;Jian;Hsien - 通讯作者:
Hsien
Synthesis of alkenyl boronates through stereoselective vinylene homologation of organoboronates
通过有机硼酸酯的立体选择性亚乙烯基同系化合成烯基硼酸酯
- DOI:
10.1038/s44160-023-00461-w - 发表时间:
2024 - 期刊:
- 影响因子:0
- 作者:
Miao Chen;Thomas H. Tugwell;Peng Liu;Guangbin Dong - 通讯作者:
Guangbin Dong
Guangbin Dong的其他文献
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{{ truncateString('Guangbin Dong', 18)}}的其他基金
New Strategy for Synthesis of Atomically Precise Graphene Nanoribbons
合成原子级精确石墨烯纳米带的新策略
- 批准号:
2403736 - 财政年份:2024
- 资助金额:
$ 42万 - 项目类别:
Standard Grant
Ketone Alkylation Using Simple Olefins: A Sustainable Chemistry Approach
使用简单烯烃进行酮烷基化:一种可持续的化学方法
- 批准号:
2154632 - 财政年份:2022
- 资助金额:
$ 42万 - 项目类别:
Standard Grant
Ketone Alkylation Using Simple Olefins: A Sustainable Chemistry Approach
使用简单烯烃进行酮烷基化:一种可持续的化学方法
- 批准号:
1855556 - 财政年份:2019
- 资助金额:
$ 42万 - 项目类别:
Standard Grant
New Strategy for Synthesis of Atomically Precise Graphene Nanoribbons
合成原子级精确石墨烯纳米带的新策略
- 批准号:
1707399 - 财政年份:2017
- 资助金额:
$ 42万 - 项目类别:
Standard Grant
SusChEM: CAREER: Ketone Alkylation Using Simple Olefins: A Sustainable Chemistry Approach
SusChEM:职业:使用简单烯烃的酮烷基化:一种可持续的化学方法
- 批准号:
1737790 - 财政年份:2016
- 资助金额:
$ 42万 - 项目类别:
Standard Grant
SusChEM: CAREER: Ketone Alkylation Using Simple Olefins: A Sustainable Chemistry Approach
SusChEM:职业:使用简单烯烃的酮烷基化:一种可持续的化学方法
- 批准号:
1254935 - 财政年份:2013
- 资助金额:
$ 42万 - 项目类别:
Standard Grant
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