Diagnosis and modeling of the CuCl electrolyzer using electrochemical impedance spectroscopy

Sanchit Khurana, Derek Hall, Rich S. Schatz, Serguei Lvov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

A CuCl/HCl electrolytic cell was operated at different temperatures to quantify the effect of temperature on the overall performance. Polarization curves and EIS data were taken at 40, 60 and 80°C to observe the changes in ohmic, charge-transfer and interfacial resistance. Our research showed a significant increase in the cell performance as the temperature was increased from 40 to 80°C. While the polarization data were used to observe the overall increase in the current density in a specific range of applied potential, the corresponding EIS data showed a decrease in the ohmic and charge transfer resistance. It was also observed that pressure applied on the end plates during cell assembly has a significant effect on the ohmic resistance. An optimum pressure of 6.3 psi (bolt torque: 20 Nm) showed the best performance. This paper demonstrates how changes in the signature of EIS spectra with temperature reflect the cell performance.

Original languageEnglish (US)
Title of host publicationHydrogen Production, Conversion and Storage 4
PublisherElectrochemical Society Inc.
Pages41-50
Number of pages10
Edition9
ISBN (Print)9781607684619
DOIs
StatePublished - Jan 1 2013
EventHydrogen Production, Conversion and Storage 4 - 223rd ECS Meeting - Toronto, ON, Canada
Duration: May 12 2013May 16 2013

Publication series

NameECS Transactions
Number9
Volume53
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherHydrogen Production, Conversion and Storage 4 - 223rd ECS Meeting
CountryCanada
CityToronto, ON
Period5/12/135/16/13

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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