SIOC English
化学学报
高级检索

化学学报 ›› 2010, Vol. 68 ›› Issue (17): 1707-1712. 上一篇    下一篇

研究论文

添加剂3-巯基-1-丙烷磺酸钠对铜电沉积影响的研究

钟琴，辜敏*，李强   

  1. (重庆大学资源及环境科学学院 西南资源开发与环境灾害控制工程教育部重点实验室 重庆 400044)
  • 投稿日期:2009-10-05 修回日期:2010-03-15 发布日期:2010-05-10
  • 通讯作者: 辜敏 E-mail:mgu@stu.edu.cn;gumin66@yahoo.com.cn
  • 基金资助:

    重庆市科委科技计划项目院士专项

Studies on the Influence of Sodium 3-Mercaptopropanesulphonate Additives on Copper Electrodeposition

ZHONG Qin, GU Min, LI Qiang   

  1. (Key Laboratory for the Exploitation of Sothwestern Resources and the Environmental Disaster Control Engineering, Ministry of Education, College of Resource and Environmental Science, Chongqing University, Chongqing 400044)
  • Received:2009-10-05 Revised:2010-03-15 Published:2010-05-10

PDF

2222

被引次数

20 | 5

采用循环伏安(CV)、线性电位扫描(LSV)、计时安培(CA)和交流阻抗(AC impedance)电化学方法结合扫描电镜(SEM)研究了不同浓度的3-巯基-1-丙烷磺酸钠(MPS)对CuSO4-H2SO4体系中铜在玻碳电极(GCE)上的电沉积过程的影响. CV, LSV和AC impedance实验结果一致表明 MPS阻化铜的电沉积, 并且随着MPS浓度的增加, 其阻化作用增强. 但是MPS对Cu的电结晶过程表现为促进作用, CA与SEM研究结果一致表明, MPS不改变Cu的电结晶成核机理, 仍然按瞬时成核和三维生长方式进行, 并且成核数目随着MPS浓度的增大而增加.

关键词: MPS, 铜, 电沉积, 电结晶

The influence of sodium 3-mercaptopropanesulfonate (MPS) with different concentrations on the copper electrodeposition on a glass carbon electrode (GCE) from CuSO4-H2SO4 electrolytes was studied by using cyclic voltammetry (CV), linear sweep voltammetry (LSV), chronoamperometry (CA), AC impedance and scanning electron microscopy (SEM) techniques. The experiment results of CV, LSV and AC impedance indicated that MPS inhibited copper electrodeposition. The inhibition effect became strong with the increase of MPS concentration. However, it was found that MPS accelerated the electrocrystallization process of copper. The results of CA and SEM demonstrated that copper electrocrystallization from the electrolytes either with or without MPS followed instantaneous nucleation with three-dimensional growth. And the nuclear number density increased with the increase of the concentration of MPS.

Key words: MPS, copper, electrodeposition, electrocrystallization