IMPEDANCE MEASUREMENTS OF THE RELAXATION PHENOMENA IN THE BISMUTH ANODIC FILM ELECTROLYTE SYSTEM

被引：21

作者：

BOJINOV, M ^{[1
]}

KANAZIRSKI, I ^{[1
]}

GIRGINOV, A ^{[1
]}

机构：

[1] SOFIA UNIV TECHNOL,DEPT PHYS CHEM,BU-1156 SOFIA,BULGARIA

来源：

ELECTROCHIMICA ACTA | 1992年 / 37卷 / 13期

关键词：

AC IMPEDANCE; ANODIZATION; SPACE CHARGE; RELAXATION; BISMUTH ELECTRODE;

D O I：

10.1016/0013-4686(92)87076-C

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

AC impedance measurements were carried out in order to study the relaxation processes in the electrode system Bi/Bi2O3/glycol borate electrolyte. Measurements during anodization, as well as in the relaxation period after switching off the polarization, reveal a complex picture. In addition to the kinetic and mass transport limitations, a medium frequency loop consisting of a negative resistance in parallel with a negative capacitance is observed. It is believed to be due to the dissipation of the space charge formed during anodization. A simple kinetic model is used in order to explain the impedance spectra features.

引用

页码：2415 / 2420

页数：6

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