Interfaces between ionic liquids and low temperature plasmas - A novel type of fluid/fluid interface

离子液体和低温等离子体之间的界面 - 一种新型的流体/流体界面

• 批准号: 29487753
• 负责人: Professor Dr. Frank Endres
• 金额: --
• 依托单位: Physikalisch-Chemisches Institut
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/29487753?language=en
• 关键词: Interfaces; between; ionic; liquids; low

Ionic liquids form a highly interesting group of solvents for electrochemical processes - mainly due to the combination of their high electrical conductivity, their electrochemical stability and their ability to dissolve a wide range of compounds. In addition, the large variety of ionic liquids offers the prospect of tailor-made solutions for different electrochemical applications. The crucial element of most electrochemical processes is the interface between the electrolyte (the ionic liquid) and an electron-conducting electrode material (usually a metal). The properties of the interface (morphology, double layer structure and capacity, electrode kinetics) are usually decisive for the results of the process. In our project we propose to explore and study systematically the interface between ionic liquids and low temperature plasmas (gas discharges) as a new system both in the chemistry of ionic liquids and in electrochemistry. In line with this general aim we plan to investigate and to understand this specific fluid/fluid interface both from the thermodynamic and the kinetic point of view. The cathodic metal deposition at the ionic liquid/plasma interface will be studied as a model process in order to probe the interfacial properties as a function of the parameters determined by the ionic liquid and the neighbouring plasma. The characteristics of the metal deposition at the free interface of the ionic liquid towards the plasma will be compared with the characteristics of conventional cathodic deposition at solid electrodes and less conventional deposition at liquid/liquid interfaces.

离子液体形成了一个非常有趣的电化学过程溶剂组 - 主要是由于它们的高电导率，它们的电化学稳定性以及溶解多种化合物的能力的结合。此外，各种各样的离子液体为不同的电化学应用提供了量身定制的溶液。大多数电化学过程的关键要素是电解质（离子液体）和电子传导电极材料（通常是金属）之间的界面。界面的特性（形态，双层结构和容量，电极动力学）通常对于该过程的结果是决定性的。在我们的项目中，我们建议系统地探索和研究离子液体与低温等离子体（气体排放）之间的界面，无论是在离子液体的化学和电化学中的新系统。与这个一般目标一致，我们计划从热力学和动力学的角度研究并了解这种特定的流体/流体界面。将研究在离子液体/等离子体界面处的阴极金属沉积作为模型过程，以探测界面特性，这是由离子液体和相邻等离子体确定的参数的函数。将离子液体对等离子体的自由界面上的金属沉积的特征与在固体电极处的传统阴极沉积的特征进行比较，而在液体/液体界面上的传统沉积较少。