CAS: Glyonic Liquids: Sugar-Based Ionic Liquids and Deep Eutectic Solvents from Sustainable Sources for Electrochemical Applications

在这个由化学系化学结构、动力学和机制B计划资助的项目中，亚利桑那大学化学和生物化学系的Jeanne E.Pemberton教授和Steve D.Schwartz教授正在开发一种用于电池的新型导电液体。这些新材料，甘氨酸液体，是由生物质(如糖)制成的，可生物降解，无毒。本研究的目标是通过分子设计来优化这些材料的导电性能，并探索它们作为绿色、可再生的导电电解液在传感、能量转换和存储设备中的应用。该项目位于有机化学、物理化学和材料化学的交界处。这一努力还将支持在研究生、本科生和K-12科学各级发展新的知识产权和教育举措，特别强调对亚利桑那州南部人口基础较大的代表性不足群体成员的影响。外联活动包括为在职中学科学教师举办关于绿色化学和可持续发展的讲习班。甘氨酸液体是一种新型质子型离子液体，其结构以鼠李糖脂平台为基础，因为阴离子可以与各种阳离子配对。这些材料表现出了耐人寻味的导电性能，这可能使它们成为用于电化学设备的极佳选择。为此，这项工作涉及三个具体目标：1)通过开发合成手柄，促进这些材料在室温或接近室温的液体状态下保持不变，合成和调整基于鼠李糖脂结构基元的甘氨酸液体的性质；2)探索这些甘氨酸液体的电化学应用；以及3)对甘糖液体进行计算研究，以定义纳米和介观尺度上的分子间/分子内相互作用和结构。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，认为值得支持。

In this project, funded by the Chemical Structure, Dynamics, and Mechanisms B Program of the Chemistry Division, Professors Jeanne E. Pemberton and Steve D. Schwartz of the Department of Chemistry and Biochemistry at the University of Arizona are developing a new class of conductive liquids to be used in batteries. These new materials, glyonic liquids, are made from biomass (e.g., sugars) and are biodegradable and nontoxic. The goal of this research is to optimize the conductive properties of these materials by molecular design and tp explore their applications as green, renewable conductive electrolytes in devices used for sensing and energy conversion and storage. The project lies at the interface of organic, physical and materials chemistry. This effort will also support the development of new intellectual property and educational initiatives at the graduate, undergraduate and K-12 science levels, with a particular emphasis on impacting members of underrepresented groups who are a large demographic base in southern Arizona. Outreach activities include the development of a workshop for in-service secondary science teachers on green chemistry and sustainability.Glyonic liquids are a new type of protic ionic liquid structurally based on a rhamnolipid platform as the anion can be paired with a variety of cations. These materials have demonstrated intriguing conductive properties that might make them excellent choices for use in electrochemical devices. Toward that end, this effort involves three specific objectives: 1) synthesis and property tuning of glyonic liquids based on the rhamnolipid structural motif through exploitation of synthetic handles that facilitate retention of these materials in the liquid state at or near room temperature; 2) exploration of electrochemical applications of these glyonic liquids; and 3) computational studies on glyonic liquids to define inter/intramolecular interactions and structure at the nano- and meso-scales as a function of temperature.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.