Application of Kramers-Kronig transforms in the analysis of electrochemical impedance data - II. Transformations in the complex plane

Journal Article · Wed Oct 01 04:00:00 EDT 1986 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2108332· OSTI ID:6540117

Macdonald, M U; Real, S; Macdonald, D D

Algorithms have been developed to apply the Kramers-Kronig transforms in the analysis of experimental electrochemical impedance data. The application of these algorithms is illustrated by transforming calculated impedance data for an electrical equivalent circuit, by transforming experimental data for TiO/sub 2-/coated carbon steel in HCl/KCl solution at 25/sup 0/C, and by analyzing data for an aluminum alloy in 4M KOH at 60/sup 0/C. These transforms, coupled with statistical techniques, provide a powerful means of evaluating the validity of impedance data with respect to spurious errors that are present in either the real or imaginary component, and with respect to system stability.

• Research Organization: SRI International, Chemistry Lab., Menlo Park, CA
• OSTI ID: 6540117
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 133:10; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
ALGORITHMS
ALKALI METAL COMPOUNDS
ALLOYS
ALUMINIUM ALLOYS
CARBON STEELS
CHALCOGENIDES
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CORRELATIONS
DATA ANALYSIS
ELECTRIC IMPEDANCE
ELECTROCHEMISTRY
ELECTRONIC CIRCUITS
EQUIVALENT CIRCUITS
HALIDES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROXIDES
IMPEDANCE
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
KRAMERS-KRONIG CORRELATION
MATHEMATICAL LOGIC
MATHEMATICS
MEDIUM TEMPERATURE
OXIDES
OXYGEN COMPOUNDS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
STABILITY
STATISTICS
STEELS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS