Xu Mingxiao,Zhan Chongbo,Zhang Siqi,et al.Effect of succinimide on the nucleation mechanism of silver in deep eutectic solvents[J].Plating & Finishing,2024,(3):34-38.[doi:10.3969/j.issn.1001-3849.2024.03.005]
丁二酰亚胺对低共熔溶剂中银成核机理的影响
- Title:
- Effect of succinimide on the nucleation mechanism of silver in deep eutectic solvents
- Keywords:
- deep eutectic solvents ; silver coating ; electrodeposition behavior ; succinimide
- 分类号:
- TQ153.16
- 文献标志码:
- A
- 摘要:
- 本文采用循环伏安法（ CV ）和计时电流法（ CA ）考察了在有无丁二酰亚胺添加的条件下低共熔溶剂（ DESs ）中银的结晶成核机理；利用扫描电子显微镜（ SEM ）和 X 射线衍射仪（ XRD ）观察镀液浓度变化对镀层微观形貌以及相组成的影响。计时电流的结果表明，丁二酰亚胺的加入使 Ag 的结晶方式发生改变， Ag 在 DESs-0.6 mol/L 丁二酰亚胺和 0.1 mol/L AgNO 3 中电结晶过程是受扩散控制的三维连续成核。随着丁二酰亚胺的加入，镀层表面 Ag 结晶更加细致，结晶度增大，并且银镀层耐腐蚀性能得到提高。
- Abstract:
- ： Cyclic voltammetry （ CV ） and chronoamperometry （ CA ） were used to investigate the nucleation mechanism of silver in deep eutectic solvents （ DESs ） with or without the addition of succinimide. Scanning electron microscopy （ SEM ） and X-ray diffraction （ XRD ） were applied to observe the effect of plating solution concentration on the microstructure and phase composition of the coating. The results of chronoamperometry showed that the addition of succinimide changed the crystallization mode of Ag ， and the process of Ag crystallization in DES-0.6 mol/L succinimide and 0.1 mol/L AgNO 3 was three- dimensional continuous nucleation controlled by diffusion. With the addition of succinimide ， the surface Ag crystallization of the coating becomes finer ， the crystallinity increases ， and the corrosion resistance of the silver coating are improved.
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备注/Memo
收稿日期： 2023-06-09 修回日期： 2023-07-02 作者简介： 徐铭孝（ 1998 ―），男，硕士研究生， email ： 1508935675@qq.com 通信作者： 孙杰， email ： jiersun2000@126.com 基金项目： 沈阳理工大学高水平成果建设项目（ SYLUXM202105 ）；沈阳理工大学科研创新团队支持项目 （ SYLUTD202004 ）；水改性低共熔溶剂中 Zn-Ni 合金的可控制备及电沉积机理研究（ LJKMZ20220598 ）