HC-sensor for exhaust gases based on semiconducting doped SrTiO 3 for On-Board Diagnosis

Kathy Sahner, Maximilian Fleischer, Erhard Magori, H. Meixner, Jürgen Deerberg, Ralf Moos

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In this contribution, a multilayer resistive sensor based on catalytically activated and non-activated SrTiO 3 is presented as a device for lean hydrocarbon sensing. This set-up should enable a compensation of oxygen cross interference. Whereas the catalytically activated part merely detects a variation in the oxygen equilibrium concentration in presence of hydrocarbons, the non-activated part strongly interacts with the reducing gases. Promising results with respect to stable sensor signals covering a wide hydrocarbon concentration range have been obtained using ethane and propane as hydrocarbon species. The sensor response is found to depend on the chain length of the used hydrocarbons. Using both sensor signals, an evaluation method for oxygen compensation has been studied. In addition, the cross interference of other common exhaust components has been investigated.

Original languageEnglish
Pages (from-to)861-868
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume114
Issue number2
DOIs
Publication statusPublished - Apr 26 2006

Fingerprint

exhaust gases
Hydrocarbons
Exhaust gases
hydrocarbons
sensors
Sensors
Oxygen
oxygen
interference
Propane
Ethane
Chain length
propane
ethane
Multilayers
coverings
Gases
evaluation
gases

Keywords

  • Exhaust gas
  • Gas sensor
  • Hydrocarbons
  • Perovskite
  • Semiconducting metal oxide

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

HC-sensor for exhaust gases based on semiconducting doped SrTiO 3 for On-Board Diagnosis. / Sahner, Kathy; Fleischer, Maximilian; Magori, Erhard; Meixner, H.; Deerberg, Jürgen; Moos, Ralf.

In: Sensors and Actuators, B: Chemical, Vol. 114, No. 2, 26.04.2006, p. 861-868.

Research output: Contribution to journalArticle

Sahner, Kathy ; Fleischer, Maximilian ; Magori, Erhard ; Meixner, H. ; Deerberg, Jürgen ; Moos, Ralf. / HC-sensor for exhaust gases based on semiconducting doped SrTiO 3 for On-Board Diagnosis. In: Sensors and Actuators, B: Chemical. 2006 ; Vol. 114, No. 2. pp. 861-868.
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