CAS: Collaborative Research: Boronium Ionic Liquids - Impact of Structure on Chemistry, Electrochemical Stability, Ion Dynamics, and Charge Transport

CAS：合作研究：硼离子液体 - 结构对化学、电化学稳定性、离子动力学和电荷传输的影响

• 批准号: 2102978
• 负责人: James Davis
• 金额: $ 51.02万
• 依托单位: University of South Alabama
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2102978&HistoricalAwards=false
• 关键词: CAS; Collaborative; Research; Boronium; Ionic

In this collaborative research, funded by the Chemical Structure, Dynamics & Mechanisms B Program of the Chemistry Division, James Davis of the Department of Chemistry at the University of South Alabama (USA) and Paul Trulove, Tyler Cosby, David P Durkin of the Chemistry Department of the U.S. Naval Academy (USNA) will prepare and characterize a new class of liquid salts (ionic liquids), that are unique in having boron-centered cations at their core. The primary goal of this research is to investigate how the structure and composition of these boron-based ionic liquids impact key physical and chemical properties. This is vital information in that ionic liquids have the potential to serve as superior electrolytes (key battery components), and, as such, could lead to significant improvements in electrical energy storage (e.g., batteries, capacitors), synthetic electrochemistry, and the recovery of metals from electronic waste. This project synergistically ties the synthesis efforts at USA with materials characterization at USNA in a dynamic cycle to drive optimized material performance. Furthermore, this collaborative effort at undergraduate-only research institutions provides the opportunity for significant involvement of undergraduate research scientists in cutting-edge science.This project is expected to generate a library of structurally and compositionally novel ionic liquids based upon boronium cations paired with the triflimide anion [(CF3SO2)2N-]. The initial suite of compounds will consist of salts that include cyclic, bicyclic, and acylic boronium cations. These ionic liquids will then be characterized using a battery of physicochemical techniques which will interrogate their physical, spectroscopic, thermal, ionic, and electrochemical properties. A major emphasis of this portion of the proposed work will be to elucidate the influence of specific cation molecular structure changes on the ion dynamics. The information gleaned from these studies will then, in combination with computational evaluations, be used in a feedback loop to guide the synthesis of new cation variants in order to (a) validate (or refute) the apparent relationships, and (b) guide the design of new cations with optimized properties, especially ones that may be germane to the use of these salts as electrolytes in energy devices (i.e., batteries, capacitors) and as dual solvent-electrolytes for synthetic electrochemistry and/or for the electrowinning of metals.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.

在这项合作研究中，由化学系化学结构、动力学和机理 B 项目、南阿拉巴马大学（美国）化学系的 James Davis 和化学系的 Paul Trulove、Tyler Cosby、David P Durkin 资助美国海军学院 (USNA) 将制备并表征一类新型液体盐（离子液体），其独特之处在于其核心具有以硼为中心的阳离子。 这项研究的主要目标是研究这些硼基离子液体的结构和成分如何影响关键的物理和化学性质。 这是至关重要的信息，因为离子液体有潜力作为优质电解质（关键电池组件），因此可以显着改进电能存储（例如电池、电容器）、合成电化学和回收电子废物中的金属。 该项目将美国的合成工作与 USNA 的材料表征协同结合在一个动态循环中，以驱动优化的材料性能。 此外，这种仅限本科生研究机构的合作努力为本科生研究科学家大量参与尖端科学提供了机会。该项目预计将产生一个基于硼阳离子与三氟甲酰亚胺配对的结构和成分新颖的离子液体库。阴离子[(CF3SO2)2N-]。 最初的一组化合物将由包含环状、双环和酰基硼阳离子的盐组成。然后，将使用一系列物理化学技术来表征这些离子液体，这些技术将询问它们的物理、光谱、热、离子和电化学性质。 这部分拟议工作的主要重点是阐明特定阳离子分子结构变化对离子动力学的影响。 然后，从这些研究中收集的信息将与计算评估相结合，用于反馈循环中以指导新阳离子变体的合成，以便（a）验证（或反驳）明显的关系，以及（b）指导设计具有优化特性的新阳离子，特别是那些可能与使用这些盐作为能源设备（即电池、电容器）中的电解质以及作为合成电化学和/或电解沉积的双溶剂电解质密切相关的阳离子该奖项反映了 NSF 的法定使命，并通过使用基金会的智力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

Unusual Boronium Salt Shows Antifungal Activity Comparable to a Commercial Quaternary Ammonium Disinfectant

不寻常的硼盐显示出与商业季铵消毒剂相当的抗真菌活性

• DOI: 10.1002/slct.202104344
• 发表时间: 2022-03
• 期刊: ChemistrySelect
• 影响因子: 2.1
• 作者: Ravine, Terrence J.;Soltani, Mohammad;Davis, Jr., James H.;Salter, Edward A.;Wierzbicki, Andrzej
• 通讯作者: Wierzbicki, Andrzej