Applications of ionic liquids in electrodeposition of rare earths  

作　　者：崔焱 华一新 

机构地区：[1]Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology

出　　处：《Journal of Chongqing University》2010年第4期167-176,共10页重庆大学学报（英文版）

基　　金：Funded by National Natural Science Foundation of China (Nos. 50864009 and 50904031)

摘　　要：The electrodeposition and electrochemical behaviors of rare earths in different ionic liquids are summarized. It is demonstrated that most of the rare earths can be electrodeposited in ionic liquids except cerium. Anion of ionic liquids appears to play a significant role in determining the electrochemical windows, and then deciding whether the corresponding ionic liquids can be used for rare earths electrodeposition. The electrochemical behaviors of the reduction process in ionic liquids are similar to those in high-temperature molten salts. The reduction of RE(III) to RE(II) has different reversibility, but the reaction of rare earths to their zerovalent state is irreversible.The electrodeposition and electrochemical behaviors of rare earths in different ionic liquids are summarized. It is demonstrated that most of the rare earths can be electrodeposited in ionic liquids except cerium. Anion of ionic liquids appears to play a significant role in determining the electrochemical windows, and then deciding whether the corresponding ionic liquids can be used for rare earths electrodeposition. The electrochemical behaviors of the reduction process in ionic liquids are similar to those in high-temperature molten salts. The reduction of RE（III） to RE（II） has different reversibility, but the reaction of rare earths to their zerovalent state is irreversible.

关 键 词：ionic liquid rare earths electrodeloosition ELECTROCHEMISTRY 

分 类 号：TF845[冶金工程—有色金属冶金]