CAJ | 학술논문

在[ emim] BF4离子液体中Pt片电极上通过恒电位电沉积制备出金属Ti。采用液／液连续萃取方法对亲水性离子液体[emim]BF4进行提纯，高纯水多次洗涤方法对疏水性离子液体[bmim]PF6进行提纯。在[emim]BF4和[ bmim] PF6两种离子液体中研究了TiCl4的循环伏安，在含有TiCl4的[ emim] BF4离子液体中，研究了Pt片电极上的恒电位电沉积。结果表明，连续萃取方法提纯[ emim] BF4及高纯水多次洗涤[ bmim] PF6，可使两种离子液体纯度分别达到实验要求；在离子液体[emim]BF4中，在Pt片电极上，在－1．8 V（vs Pt）下电解2 h，沉积物中的Ti含量达82．8％。
재[ emim] BF4리자액체중Pt편전겁상통과항전위전침적제비출금속Ti。채용액／액련속췌취방법대친수성리자액체[emim]BF4진행제순，고순수다차세조방법대소수성리자액체[bmim]PF6진행제순。재[emim]BF4화[ bmim] PF6량충리자액체중연구료TiCl4적순배복안，재함유TiCl4적[ emim] BF4리자액체중，연구료Pt편전겁상적항전위전침적。결과표명，련속췌취방법제순[ emim] BF4급고순수다차세조[ bmim] PF6，가사량충리자액체순도분별체도실험요구；재리자액체[emim]BF4중，재Pt편전겁상，재－1．8 V（vs Pt）하전해2 h，침적물중적Ti함량체82．8％。
Titanium was successfully electrodeposited on Pt electrode from 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid by the constant potential electrolysis .1-Ethyl-3-methylimidazolium tetraflu-oroborate ([emim]BF4) ionic liquid was purified by liquid/liquid continuous extraction, and 1-butyl-3-methylimidazolium hexafluorophosphate ( [ bmim] PF6 ) ionic liquid was purified by multiple washing with milipore water.Cyclic voltammograms of titanium tetrachloride (TiCl4) were studied in [emim]BF4 and [ bmim] PF6 .Constant potential electrolysis was studied on Pt electrode in [ emim] BF4 containing TiCl 4 . [ emim] BF4 and [ bmim] PF6 can reached experimental requirements by the above purification methods . Constant potential deposition experiments showed that the purity of titanium electrodeposits on Pt elec -trodes was 82.8%at -1.8 V (vs Pt) for 2 h electrolysis at room temperature .