二甲基亚砜中Er-Ni-Co合金膜的电化学制备

Electrochemical Preparation of Er-Ni-Co Alloy Film in DMSO

利用循环伏安法和恒电位电解法研究了室温条件下在LiClO4-二甲基亚砜(DMSO)体系中Er-Ni-Co功能合金膜的电化学制备.实验结果表明,在0.1mol·L-1ErCl3-0.1mol·L-1NiCl2-0.1mol·L-1CoCl2-0.1mol·L-1LiClO4-DMSO体系中,控制电位在-2.20～-2.50V范围内进行恒电位电解,得到表面均匀、附着力强、有金属光泽的黑色非晶态Er-Ni-Co合金膜,其中Er的质量分数可达9.21%～18.90%.

The cyclic voltammetry and potentio static electrolysis were used to investigate the preparation of Er-Ni-Co alloy films in LiClO 4 -DMSO system.Experimental results indicate that Er-Ni-Co alloy films c ontaining Er from 9.21%to 18.90%were prepared from 0.1mol ·L -1 ErCl 3 -0.1mol ·mL -1 NiCl 2 -0.1mol ·L -1 Co-Cl 2 -0.1mol ·L -1 LiClO 4 -DMSO system by potentiostatic electrolysis on Cu substrates at deposit ion potential from-2.20～-2.50V(vs SCE).Their surfaces are black,uniform,adhesive,and of metallic luster.