STUDIES ON OXYGEN-ION CONDUCTING SOLID ELETROLYTES AS PROMOTERS FOR THREE-WAY EXHAUST CATALYST: I. STEADY-STATE CHARACTERISTICS OF PLATINUM-PROMOTER INTERFACE DURING CO OXIDATION.

I. S. Metcalfe, Sankaran Sundaresan

Research output: Contribution to journalArticlepeer-review

Abstract

The charge transfer reactions between a Pt catalyst and an yttria-stabilized zirconia support have been studied electrochemically during CO oxidation. The activation energies for the charge transfer reactions and the effect of operating conditions on the adsorbate composition have been estimated from a combination of electrochemical and reaction-rate measurements obtained over a range of gas phase compositions at temperatures typical of automotive exhaust. The results are interpreted mechanistically on the basis of a model involving both molecularly and dissociatively adsorbed oxygen.

Original languageEnglish (US)
JournalAnnual Meeting - American Institute of Chemical Engineers
StatePublished - Dec 1 1985

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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