Equivalent Circuit of Warburg Impedance

N. A. Sekushin^z

Komi Institute of Chemistry, Scientific Center, Ural Division, Russian Academy of Sciences,
Pervomaiskaya 48, 167982 Syktyvkar, Russia

Received May 12, 2008

Abstract—Justification is presented for the principles of construction of the simplest equivalent circuit for
Warburg impedance that follow from the properties of the conductivity function (CF) and logarithmic conduc-
tivity function (LCF) of RC two–terminal networks with lumped and distributed parameters. The possibility is
shown of presenting CF in the form of a sum of parameters of the same type or in the form of a product of factors
of two types. The methods of construction of asymptotic LCFs are considered. Relationships are obtained that
allow modeling Warburg impedance with two and three serial capacitive circuits on the basis of the performed
analysis.

Key words: equivalent circuit, mathematical model, two-terminal network, Warburg impedance, serial capaci-
tive circuit, conductivity function

DOI: 10.1134/S1023193509070209

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.