低价钛离子电解质的制备与电化学行为研究  

Preparation of titanium subchlorides molten salt and study on it's electrochemical behavior

作　　者：王芳平 汪艳芳 张劲斌 杜娟 李会林 WANG Fang-ping;WANG Yan-fang;ZHANG Jing-bin;DU Juan;LI Hui-lin

机构地区：[1]中国铝业郑州有色金属研究院有限公司,河南郑州450041

出　　处：《中国有色冶金》2018年第6期74-77,共4页China Nonferrous Metallurgy

摘　　要：本文采用四价钛(Ti^(4+))与海绵钛反应的方法在摩尔比为1:1的NaCl-KCl空白盐中引入低价钛离子制备得到低价钛熔盐。并自制适合该熔盐体系的Ag/AgCl参比电极,采用循环伏安(CV)法对该熔盐体系的电化学行为进行了研究。研究结果表明,该低价钛盐在通电时低价钛离子依次发生Ti^(3+)+e→Ti^(2+)和Ti^(2+)+2e→Ti两个反应;且当Ti^(4+)加入量较少时,低价钛熔盐中Ti^(3+)浓度高于Ti^(2+)浓度,当加入的Ti^(4+)合适时,低价钛熔盐中的Ti^(3+)和Ti^(2+)浓度相当。In this paper,the titanium subchlorides molten salt was prepared by Ti^4+and sponge titanium reacted in the equimolar NaCl-KCl system.The suitable Ag/AgCl reference electrode was prepared by ourselves.The electrochemical performance of the titanium subchlorides molten salt was tested with cyclic voltammetry(CV).The results show that chemical reactions Ti^3++e→Ti2+and Ti^2++2e→Ti occurred in turn.When less Ti^4+was added into the molten salt,the concentration of Ti^3+was higher than the Ti^2+.When an appropriate amount of Ti^4+was added into the molten salt,the concentration of Ti^3+and Ti^2+were equivalent.

关 键 词：低价钛离子 熔盐电解 循环伏安法 

分 类 号：TF823[冶金工程—有色金属冶金]