第 47 卷第 5 期 | | Vol. 47 No. 5 | 2017 年 10 月 | Oct 2017 |
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所属栏目:功能材料
电化学石英晶体微天平研究电沉积镍 |
张青芳1,曾 明1,陈 超2,王翠琼1,蒋银燕1*
(1.长沙医学院 基础医学院,湖南 长沙 400219;2.湖南师范大学 化学化工学院,湖南 长沙 400081) |
摘 要:为研究不同温度和pH值对电还原硫酸镍过程的影响,优化电沉积镍的条件,采用石英晶体微天平结合电化学工作站循环扫描方法,通过改变pH、沉积液温度等不同条件,研究镍的电沉积速率的变化规律。电极表面频率的下降速率和扫描电镜结果显示,缓冲系有利于晶粒细化,温度升高使得电沉积镍的沉积速率增大。 |
关键词:镍的电沉积;机理;缓冲系;石英晶体微天平 |
中图分类号:O657.1 文献标识码:A 文章编号:1009-9212(2017)05-0067-04 |
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Study on Nickel Electrodepositing by Electrochemical Quartz Crystal Microbalance |
ZHANG Qing-fang1, ZENG Ming1, CHEN Chao2, WANG Cui-qiong1, JIANG Yin-yan1*
(1. Department of Chemistry, Faculty of preclinical medicine, Changsha Medical University, Changsha 400219, China; 2. College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China) |
Abstract:In order to study the influence of different temperature and pH value on the process of electro reduction of nickel sulfate, the conditions of pH and deposition liquid temperature were optimized, the deposition process of nickel salt was studied by quartz crystal microbalance combined with electrochemical workstation scanning method. Judging from the decrease rate of the electrode surface frequency and scanning electron microscope(SEM) images, the buffer system is good for grain refinement, and the deposition rate of electrodeposited nickel increases with the increase of temperature. |
Key words:electroposition of nickel; mechanism; buffer system; quartz crystal microbalance |
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基金项目:湖南省教育厅科学研究项目(16C0152,17C0151)。
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作者简介:张青芳(1985-),女,湖南岳阳人,讲师,硕士,研究方向:电化学分析(E-mail:187364593@qq.com)。
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收稿日期:2017-09-25
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