Electrochemical formation of holmium-cobalt alloys
来源期刊：Rare Metals2003年第1期
论文作者：SU Yuzhi, YANG Qiqin, and LIU GuankunDepartment of Chemistry, School of Biological and Chemical Engineering, Guangzhou University, Guangzhou , ChinaDepartment of Chemistry, School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou , China
文章页码：19 - 24
摘 要：<正> The electrochemical formation processes of holmium-coball alloys on cobalt cathode in molten HoCl3-KCl were investigated by cyclic voltammetry and open current potential-time curve after potentiostatic electrolysis. The structure of Ho-Co alloys’ films deposited on cobalt electrode by potentiostatic electrolysis was characterized by X-ray diffraction. The standard Gibbs free energies of formation for the intermetallic compounds of Ho and Co were determined. The diffusion coefficient and diffusion activation energy of Ho atom in the alloy phase were calculated to be 10-10-10-11 cm2/s and 96.0 kJ/mol, respectively, from the current-time curve at potential step.
摘要：<正> The electrochemical formation processes of holmium-coball alloys on cobalt cathode in molten HoCl3-KCl were investigated by cyclic voltammetry and open current potential-time curve after potentiostatic electrolysis. The structure of Ho-Co alloys’ films deposited on cobalt electrode by potentiostatic electrolysis was characterized by X-ray diffraction. The standard Gibbs free energies of formation for the intermetallic compounds of Ho and Co were determined. The diffusion coefficient and diffusion activation energy of Ho atom in the alloy phase were calculated to be 10-10-10-11 cm2/s and 96.0 kJ/mol, respectively, from the current-time curve at potential step.
关键词：
