期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 19, 期 36, 页码 24934-24944出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cp04032f
关键词
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资金
- MEPhI Academic Excellence Project
- Young Investigator Training Award Program of ACRI in Challenges in Data Science
- Ministry of Education and Science of the Russian Federation [02.a03.21.0005]
The derivation of Warburg's impedance is revisited and critically analyzed. We show that the original derivation where the electric current is assumed to be due only to the diffusion of ions, as proposed by Warburg, raises some fundamental questions. The roles of the drift current, in the absence of which the equilibrium is never reached in the dc case, and of the displacement current, which is important even in the low frequency region where the Warburg's impedance appears, are discussed. Finally, the utility of models based on equivalent electric circuits, ladder networks, or transmission lines in the analysis of impedance spectroscopy data is investigated.
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