ELECTROREDUCTION OF Yb(Ⅲ) ON NICKEL CATHODE IN MOLTEN CHLORIDE

来源期刊：中国有色金属学报(英文版)1998年第3期

论文作者：Liu Guankun Tong Yexiang Yang Qiqin Hong Huichan Chen Shengyang

文章页码：516 - 519

Key words：Yb(Ⅲ)；　electroreduction；　molten chloride

Abstract: The cyclic voltammetry, potential-time curve after potentiostatic electrolysis and X-ray diffraction were used to study the electrochemical reaction of Yb(Ⅲ) in NaCl∶KCl=1∶1(in mole) mixture on Ni cathode. The reduction of Yb(Ⅲ) to Yb(Ⅱ) was realized on Ni electrode at first step and Yb(Ⅱ) was reduced and alloyed with Ni on electrode surface respectively. The diffusion coefficient of Yb(Ⅲ) in NaCl-KCl-YbCl₃ is 1.25×10^-5 cm² /s at 973 K.