Amperometric hydrocarbon sensor using La(Sr)Ga(Fe)O3 solid electrolyte for monitoring in exhaust gas

Atanu Dutta, Hiroyasu Nishiguchi, Yusaku Takita, Tatsumi Ishihara

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Emission of hydrocarbon at low temperature, especially in the cold start condition of the automobile engine, has attracted attention these days. For the first time an electrochemical sensor based on LaGaO3 with iron doping was demonstrated to have very high sensitivity to propene (C3H 6) at low temperature (423-573 K). In the amperometric mode, the output current signal was found to increase linearly with the C 3H6 concentration (500-2000 ppm) in logarithm scale. Effect of iron doping at the gallium site was found to influence the sensing properties greatly and the electrolyte composition La0.7Sr 0.3Ga0.7Fe0.3O3 showed the highest sensitivity of 976 μA/decade at 473 K. The sensors were fast, reproducible and highly selective to hydrocarbons.

Original languageEnglish
Pages (from-to)368-373
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume108
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - Jul 22 2005

Fingerprint

exhaust gases
Solid electrolytes
solid electrolytes
Hydrocarbons
Exhaust gases
automobile engines
Iron
hydrocarbons
Doping (additives)
Automobile engines
iron
Electrochemical sensors
Gallium
Monitoring
sensitivity
sensors
Sensors
logarithms
Electrolytes
Propylene

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Amperometric hydrocarbon sensor using La(Sr)Ga(Fe)O3 solid electrolyte for monitoring in exhaust gas. / Dutta, Atanu; Nishiguchi, Hiroyasu; Takita, Yusaku; Ishihara, Tatsumi.

In: Sensors and Actuators, B: Chemical, Vol. 108, No. 1-2 SPEC. ISS., 22.07.2005, p. 368-373.

Research output: Contribution to journalArticle

Dutta, Atanu ; Nishiguchi, Hiroyasu ; Takita, Yusaku ; Ishihara, Tatsumi. / Amperometric hydrocarbon sensor using La(Sr)Ga(Fe)O3 solid electrolyte for monitoring in exhaust gas. In: Sensors and Actuators, B: Chemical. 2005 ; Vol. 108, No. 1-2 SPEC. ISS. pp. 368-373.
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