Exhaust gas electrochemical sensors with a Nb2Os sensing electrode

L. Chevallier*, E. Di Bartolomeo, E. Traversa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Electrochemical planar sensors using Nb2O5 powders to fabricate sensing electrodes were tested both in laboratory and "in-situ", i.e. downstream a three-way catalytic converter of a FIAT fire 1242 c.c. spark ignition engine. Two cell configurations were compared, one with and the other without Pt paste under the metal oxide electrode. The best sensing performance both in laboratory and at the engine bench was obtained for the Pt | YSZ | Nb2O5 cell, without Pt below the oxide electrode. For this sensor configuration, very large EMF response values were obtained for hydrocarbon exposure, even at temperatures as high as 700°C.

Original languageEnglish (US)
Title of host publicationECS Transactions - Solid-State Ionic Devices 5
Pages133-140
Number of pages8
Volume11
Edition33
DOIs
StatePublished - 2008
Externally publishedYes
EventSolid-State Ionic Devices 5 - 212th Electrochemical Society Meeting - Washington, DC, United States
Duration: Oct 7 2007Oct 12 2007

Other

OtherSolid-State Ionic Devices 5 - 212th Electrochemical Society Meeting
CountryUnited States
CityWashington, DC
Period10/7/0710/12/07

ASJC Scopus subject areas

  • Engineering(all)

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