中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (1): 6-10.

• 研究论文 • 上一篇    下一篇

复合镀层中ZrO2微粒对基质Ni晶体结构的影响

王为, 郭鹤桐, 高建平, 覃奇贤   

  1. 天津大学应用化学系 天津 300072
  • 收稿日期:1996-05-21 修回日期:1996-10-22 出版日期:1997-02-10 发布日期:1997-02-10
  • 基金资助:
    国家自然科学基金

Effect of ZrO2 Particles on the Crystal Structure of Matrix Ni in Ni ZrO2 Composite Plating

Wang Wei, Guo Hetong, Gao Jianping, Qin Qixian   

  1. Department of Applied Chemistry, Tianjin University, Tianjin 300072
  • Received:1996-05-21 Revised:1996-10-22 Published:1997-02-10 Online:1997-02-10

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摘要： 采用复合电沉积方法制得了Ni-ZrO2复合镀层,探讨了ZrO2微粒引起的基质金属Ni的晶体择优取向及点阵常数的变化,及其对析氢电催化活性的影响。结果表明,ZrO2微粒的存在改变了Ni的电沉积层结构,使基质金属Ni产生新的沿(220)晶面的择优取向。这一新的择优取向不利于析氢反应。择优取向的改变说明复合电沉积过程中,Ni与ZrO2微粒是以一定的界面匹配进入复合镀层的,基质金属Ni点阵参数的改变也证明了这一点

关键词: Ni－ZrO2复合镀层, 界面, 择优取向, 析氢

Abstract: Ni ZrO2 composite plating was prepared by composite electrodeposition method, and the change of crystal preferential orientation and lattice parameter of matrix metal Ni caused by ZrO2 particles and its effect on the hydrogen evolution activity were investigated from the view of interaction between matrix metal and particles. The presence of ZrO2 particles has significant effect on the crystal structure of electrodeposited matrix metal Ni, and leads to a new crystal preferential orientation along(220)crystal face. This new crystal preferential orientation is unfavorable to the hydrogen evolution reaction. These results show that in the course of electrodeposition, Ni and ZrO2 particles enter into composite plating in a definite interfacial coupling relation, which is also proved by the data of the change in the lattice parameter of matrix metal Ni.

Key words: Ni-ZrO2 composite plating, interface, preferential orientation, hydrogen evolution

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