• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2021, Vol. 57 ›› Issue (5): 177-184.doi: 10.3901/JME.2021.05.177

• 数字化设计与制造 • 上一篇    下一篇

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复合电沉积初始阶段预吸附的惰性颗粒对金属离子沉积的影响研究

纪仁杰, 刘胜贵, 刘永红, 金辉, 张凡, 蔡宝平   

  1. 中国石油大学(华东)机电工程学院 青岛 266580
  • 收稿日期:2020-05-22 修回日期:2020-10-18 出版日期:2021-03-05 发布日期:2021-04-28
  • 通讯作者: 纪仁杰(通信作者),男,1982年出生,博士,教授,博士研究生导师,博士学位论文曾获第二届上银优秀机械博士论文铜奖。主要研究方向为特种加工技术与理论。E-mail:jirenjie@upc.edu.cn
  • 作者简介:刘胜贵,男,1996出生,硕士研究生。主要研究方向为特种加工技术与理论。E-mail:liusg_email@163.com;刘永红,男,1965年出生,博士,教授,博士研究生导师,指导的博士学位论文获上银优秀机械博士论文铜奖和优秀奖各1篇。主要研究方向为先进制造技术和海洋油气装备工程。E-mail:liuyh@upc.edu.cn
  • 基金资助:
    国家自然科学基金(51675535)和山东省高等学校优秀青年创新团队(2019KJB016)资助项目。

Effects of Pre-adsorbed Inert Particles on Deposition of Metal Ions at the Initial Stage of Composite Electrodeposition

JI Renjie, LIU Shenggui, LIU Yonghong, JIN Hui, ZHANG Fan, CAI Baoping   

  1. College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao 266580
  • Received:2020-05-22 Revised:2020-10-18 Online:2021-03-05 Published:2021-04-28

摘要: 研究了复合电沉积初始阶段预吸附的TiO2颗粒对金属镍离子电沉积的影响,首次观察到在复合电沉积初始阶段预吸附的TiO2颗粒导致镍离子异常成核和快速生长的现象。提出了逐步电沉积方法,结合循环伏安曲线和电化学阻抗谱等电化学方法,研究了预吸附TiO2颗粒对镍离子沉积的影响作用。结果表明预吸附的TiO2颗粒能够增加阴极表面的活性位点密度,并减小阴极表面的电荷转移阻抗,从而加快吸附原子的电结晶步骤。结合上述研究建立了预吸附惰性颗粒影响金属离子沉积的物理模型。本研究提供了一种金属离子快速沉积和纵向生长的可能,对于揭示复合电沉积过程中惰性颗粒与金属离子的共沉积机理和行为具有重要意义。

关键词: 复合电沉积, 预吸附, 惰性颗粒, 金属离子, 成核

Abstract: The effect of pre-adsorbed TiO2 particles on electrodeposition of nickel ions at the initial stage of composite electrodeposition has been studied. It is observed for the first time that pre-adsorbed TiO2 particles can cause abnormal nucleation and rapid growth of nickel ions at the initial stage of composite electrodeposition. A step-by-step electrodeposition method is proposed, and combined with cyclic voltammetry and electrochemical impedance spectroscopy, the effect of pre-adsorbed TiO2 particles on nickel ion deposition has been investigated. The results show that the pre-adsorbed TiO2 particles can increase the density of active sites and reduce the charge transfer resistance on the cathode surface, thereby accelerating the electrocrystallization step of adatoms. Moreover, a physical model of pre-adsorbed inert particles affecting the deposition of metal ions is established. This study provides a possibility of rapid deposition and vertical growth of metal ions, which is of great significance for revealing the mechanism and behavior of co-deposition between inert particles and metal ions in the process of composite electrodeposition.

Key words: composite electrodeposition, pre-adsorbed, inert particle, metal ion, nucleation

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