高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (4): 549.

• 研究简报 • 上一篇    下一篇

电化学石英晶体阻抗系统研究金电极上Fe(CN)63-/Fe(CN)64-电化学过程

谢青季, 王进, 徐治年, 刘宏伟, 张友玉, 姚守拙   

  1. 湖南师范大学化学研究所, 长沙 410081
  • 收稿日期:1998-08-10 出版日期:1999-04-24 发布日期:1999-04-24
  • 通讯作者: 谢青季,男,32岁,副教授.
  • 作者简介:谢青季,男,32岁,副教授.
  • 基金资助:

    国家自然科学基金(批准号:29875006);国家教育部留学归国人员基金;湖南省中青年科技基金

A Study of Electrochemical Process of Fe(CN)63-/Fe(CN)64-on Gold Electrode by Electrochemical Quartz CrystaLImpedance System

XIE Qing-Ji, WANG Jin, XU Zhi-Nian, LIU Hong-Wei, ZHANG You-Yu, YAO Shou-Zhuo   

  1. Chemical Research Institute, Hunan Normal University, Changsha, 410081
  • Received:1998-08-10 Online:1999-04-24 Published:1999-04-24

摘要: 电化学过程的石英晶体阻抗分析法已用于现场获取电活性聚合物粘弹性等信息.本文联用HP4395A阻抗/网络/频谱分析仪和EG&GM283恒电位仪开发出电化学石英晶体阻抗系统.

关键词: 现场动态石英晶体阻抗分析, 电化学, K4Fe(CN)6, K3Fe(CN)6

Abstract: Admittance spectra of quartz crystal resonance were measured in situ in the electrochemical process of Fe(CN)63-/Fe(CN)64-on Au electrode in 10mol/L Na2SO4aqueous solution using an electrochemical quartz crystaLImpedance system. Changes in motional resistance R1were well reversible with potential, but resonant frequency f0, series resonant frequency fsand parallel resonant frequency fphad significant rising drifts besides somewhat reversible changes with potential. It is concluded that changes in R1were caused by variations in solution density and viscosity near electrode surface, but frequency responses resulted from both changes of solution properties and corrosion of Au electrode in anodic process.

Key words: In situ dynamic quartz crystaLImpedance analysis, Electrochemistry, Ferricyanide, Ferrocyanide

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