Jiao Handong, Tian Donghua, Tu Jiguo, Jiao Shuqiang
State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing Beijing 100083 P. R. China
RSC Adv. 2018 May 14;8(31):17575-17581. doi: 10.1039/c8ra01646a. eCollection 2018 May 9.
This work studies the direct electrochemical preparation of Ti-Fe alloys through molten oxide electrolysis (MOE) at a liquid iron cathode. Cyclic voltammetry and potentiostatic electrolysis have been employed to study the cathodic process of titanium ions. The results show that cathodic behavior happens during the negative sweep at a potential range from -0.80 to -1.25 V ( QRE-Mo), corresponding to the electro-reduction of titanium ions. Importantly, Ti-Fe and titanium-rich Ti-Fe alloys have been successfully produced by galvanostatic electrolysis at different current densities of 0.15 and 0.30 A cm, respectively. The results show that it is feasible to directly prepare Ti-Fe alloys by the MOE method at a liquid iron cathode.
本工作研究了通过在液态铁阴极上进行熔盐氧化物电解（MOE）直接电化学制备Ti-Fe合金。采用循环伏安法和恒电位电解法研究了钛离子的阴极过程。结果表明，在-0.80至-1.25 V（相对于标准可逆电极-Mo）的电位范围内进行负向扫描时发生阴极行为，这对应于钛离子的电还原。重要的是，分别通过在0.15和0.30 A/cm²的不同电流密度下进行恒电流电解，成功制备出了Ti-Fe合金和富钛Ti-Fe合金。结果表明，在液态铁阴极上通过MOE法直接制备Ti-Fe合金是可行的。
