Reducing error and measurement time in impedance spectroscopy using model based optimal experimental design

Francesco Ciucci, Thomas Carraro, William C. Chueh, Wei Lai

Research output: Contribution to journalArticle

  • 36 Citations

Abstract

In this work we introduce several novel tools for the reduction of errors in parameters estimated with electrochemical impedance spectroscopy experiments. An optimization strategy is developed that minimizes an estimate of the errors on the parameters while bounding the experimental time. The approach is also used to reduce experimental time while keeping a bound on the parameter errors. This feature is particularly critical in systems changing significantly within the experimental time. The paper uses a fuel cell electrode model to test this methodology and presents a real time algorithm for coupling experiment with the parameter estimation and experimental optimization.

LanguageEnglish (US)
Pages5416-5434
Number of pages19
JournalElectrochimica Acta
Volume56
Issue number15
DOIs
StatePublished - Jun 1 2011

Profile

Time measurement
Design of experiments
Spectroscopy
Electrochemical impedance spectroscopy
Parameter estimation
Fuel cells
Experiments
Electrodes

Keywords

  • Equivalent circuits
  • Frequency response analysis
  • Identification of physical parameters
  • Mixed ionic and electronic conductor

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

Cite this

Reducing error and measurement time in impedance spectroscopy using model based optimal experimental design. / Ciucci, Francesco; Carraro, Thomas; Chueh, William C.; Lai, Wei.

In: Electrochimica Acta, Vol. 56, No. 15, 01.06.2011, p. 5416-5434.

Research output: Contribution to journalArticle

Ciucci, Francesco ; Carraro, Thomas ; Chueh, William C. ; Lai, Wei. / Reducing error and measurement time in impedance spectroscopy using model based optimal experimental design. In: Electrochimica Acta. 2011 ; Vol. 56, No. 15. pp. 5416-5434
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