About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage VII
|
Presentation Title |
Electrochemical Behavior of Palladium in 1-Ethyl-3-Methylimidazolium Chloride Ionic Liquid |
Author(s) |
Zhang Wu, Batric Pesic |
On-Site Speaker (Planned) |
Zhang Wu |
Abstract Scope |
Palladium is an important platinum group metal because of, among many other, its exceptional catalytic properties. As electrodeposition from aqueous solutions causes hydrogen adsorption and embrittlement the evaluation of using aprotic electrolytes, such as ionic liquids, is underway. By using rotating disk technique (glassy carbon as working electrode), we provide a systematic study on the electrochemical behavior of palladium in 1-ethyl-3-methylimidazolium chloride ionic liquid by using standard electrochemical techniques, such as cyclic voltammetry, current-time transients, and square wave voltammetry. It was found that palladium electrochemistry is characterized by two cathodic and two anodic waves, all dependent on the potential range in which they are produced. It was discovered that two cathodic waves are the results of two different surface states rather than two difference palladium species as claimed in the literature. The reversibility of electrochemical reactions and the reaction rate results will be presented and discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Electrometallurgy, Characterization |