【作者】 苏彩娜； 安茂忠； 杨培霞； 谷红微；

【Author】 SU,Cai-Na~1,AN,Mao-Zhong~(1*),YANG,,Pei-Xia~(1,2),GU,Hong-Wei~1 (1.School of Chemical Engineering and Technology,Harbin Institute of Technology,Harbin 150001,P.R.China; 2.Research Station on Material Science and Engineering for Postdoctoral Fellows,Harbin Institute of Technology,Harbin, Harbin 150001,P.R.China)

【机构】 哈尔滨工业大学化工学院； 哈尔滨工业大学材料科学与工程博士后流动站；

【摘要】 以离子液体1-丁基-3-甲基咪唑四氟硼酸盐（BMImBF₄）为电解液,采用脉冲技术研究了Tb-Fe合金在铜基体上的电沉积。室温下所制备得Tb-Fe合金薄膜表面光滑致密,银色且具有金属光泽,与基体结合牢固。初步提出了Tb-Fe合金的电沉积行为:Tb（Ⅲ）难以单独阴极还原沉积,但能被Fe（Ⅱ）诱导共沉积。采用FE-SEM观察Tb-Fe合金薄膜的表面形貌,采用EDAX测定Tb-Fe合金薄膜的组成。结果表明,当Tb（Ⅲ）/Fe（Ⅱ）浓度比为3:1、电压为6.0V、脉频为1.0kHz,脉宽为30%,在离子液体电解液中所得到的Tb-Fe合金镀层中Tb的质量分数可达52.89%。更多还原

【Abstract】 Tb - Fe alloy films from a 1 - butyl - 3 - methylimidazolium tetrafluoroborate（BMImBF₄） ionic liquid were investigated on copper substrates by pulsed electrodeposition at ambient temperature.In this ionic liquid,the smooth,adhesive, compact and metallic luster Tb - Fe alloy films were obtained.The electrodeposition mechanism of Tb - Fe alloy was put forward. Tb（Ⅲ） was not reduced to Tb alone,but it could be inductively codeposited with Fe（Ⅱ）.The Tb - Fe deposits was observed by the scanning electron microscope（FE- SEM） and Energy dispersive X- ray analysis（EDAX）,SEM image of Tb-Fe deposit showed that the Tb - Fe grains were small and dense,EDAX examined the composition of Tb - Fe alloy films obtained. The result indicated that the content of Tb in the Tb- Fe alloy film obtained was 52.89%.The technics parameters are followed:Tb（Ⅲ）:Fe（Ⅱ） 3:1,the deposit potential 6.0V,the duty cycle 30%,the pulse frequency 1.0 kHz.更多还原