离子液体在铜电沉积中的作用机理研究

项目名称： 离子液体在铜电沉积中的作用机理研究

项目编号： No.51204080

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 冶金与矿业学科

项目作者： 张启波

作者单位： 昆明理工大学

项目金额： 25万元

中文摘要： 电沉积是金属提取和精炼的有效方法，添加剂在金属电沉积过程中对于提高电流效率，降低能耗，获得表面平整、光滑、结构致密的阴极金属，具有不可替代的重要作用。本项目针对传统胶类和有机添加剂存在化学热稳定性差、毒性较强等缺陷，率先提出利用离子液体性质稳定、导热导电性良好和环境友好的特点，将其作为一类新型添加剂用于铜的电沉积，系统研究离子液体在电解液中的存在形态和在金属表面的吸附机理、离子液体对电极反应的影响机制、阴极铜在离子液体作用下的形核和生长机理与调控机制。研究工作对于丰富离子液体的电化学理论，深入了解离子液体在铜电沉积中的作用机理具有重要的科学意义，为开发高效、化学稳定性高、环境友好的新型添加剂提供理论依据，对铜和其它金属的电沉积具有重要的实际意义。

中文关键词： 铜；离子液体；电沉积；吸附；可控制备

英文摘要： Electrodeposition is an effective method for metal extraction and refining. Additives are known to play an irreplaceable role in increasing current efficiency, reducing power consumption, and producing leveled, smooth and compact cathodic deposits during metal electrodeposition process. According to the defects of traditional colloidal and organic additives, such as bad chemical and thermal stability, high toxicity, etc., the use of ionic liquids (ILs) as a kind of new additives in copper electrodeposition is firstly presented in this project based on the high chemical and thermal stability, good thermal and ionic conductivity and environment-friendly characteristics of ILs.Some system studies need to be done in aspects of the existing form of ILs in electrolyte, the adsorption mechanism of ILs on the metal surface,the influencing mechanism of ILs on the electrode reactions, and the growth and regulation mechanism of the cathodic copper in the presence of ILs.These studies not only provide important scientific significance for enriching the electrochemical theory of ILs and deeply understanding the mechanism of ILs in copper elecreodepsotion, but more importantly,provide theoretical basis for the developing of high efficient, good chemical and thermal stability, and environment-friendly novel additives and offer

英文关键词： copper；ionic liquids；electrodeposition；adsorption；controlled preparation