刁术志,王一雍,金辉,刘香琳.十二烷基硫酸钠(SDS)对铜电沉积行为的影响[J].稀有金属材料与工程,2020,49(8):2765~2772.[Diao shuzhi,Wang yiyong,Jin hui,Liu xianglin.Effect of sodium dodecyl sulfate(SDS) on copper electrodeposition behavior[J].Rare Metal Materials and Engineering,2020,49(8):2765~2772.]
十二烷基硫酸钠(SDS)对铜电沉积行为的影响
投稿时间:2019-08-14  修订日期:2019-11-11
中文关键词:  铜电沉积  弛豫时间  三维成核  临界胶束浓度
基金项目:国家自然科学基金资助(项目号51674141)
中文摘要:
      在酸性体系中采用阴极扫描伏安和计时电流等电化学测试方法,研究添加十二烷基硫酸钠(SDS)对铜电沉积过程的影响机理。结果表明:SDS的添加使沉积电位正移,降低了阴极极化。SDS浓度低于临界胶束浓度1g/L时,铜的成核弛豫时间延长,形核速率降低。SDS浓度高于临界胶束浓度时,形成SDS球状胶束,铜的成核弛豫时间减少,形核速率加快。铜晶核形成过程符合Scharitker?Hill 三维成核/生长机制,当SDS为1g/L时,在-0.2V的低过电位区,铜结晶按渐进成核方式进行,在-0.23--0.28V的高过电位区,铜结晶按瞬时成核方式进行。而当SDS为0.5g/L时,铜在-0.2V--0.25V的低电位区和在-0.28V的高电位区均符合渐进成核。
Effect of sodium dodecyl sulfate(SDS) on copper electrodeposition behavior
英文关键词:Copper electrodeposition  relaxation time  three-dimensional nucleation  critical micelle concentration
英文摘要:
      Electrochemical test methods such as cathodic scanning voltammetry and chronoamperometry were used in the acidic system to study the influence mechanism of sodium dodecyl sulfate (SDS) on the electrodeposition process of copper. The results show that the addition of SDS causes the deposition potential to shift positively and reduces the cathodic polarization. When the SDS concentration is lower than the critical micelle concentration of 1g/L, the nucleation relaxation time of copper is prolonged and the nucleation rate is decreased. When the concentration of SDS is higher than the critical micelle concentration, SDS spherical micelles are formed, and the nucleation relaxation time of copper is reduced and the nucleation rate is accelerated. The copper nucleation process conforms to the three-dimensional nucleation/growth mechanism of Scharitker?Hill. When the SDS is 1g/L, in the low overpotential zone of -0.2V, the copper crystals proceed in a progressive nucleation mode at -0.23-0.28V. In the high overpotential zone, the copper crystals proceed in a progressive nucleation mode. When the SDS is 0.5 g/L, copper conforms to the progressive nucleation in the potential region of -0.2V to -0.28V.
作者单位E-mail
刁术志 辽宁科技大学 d1306401794@163.com 
王一雍 辽宁科技大学  
金辉 辽宁科技大学  
刘香琳 辽宁科技大学  
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