Nasicon-based planar-type cO2 sensor attached with solid reference electrode stable under high humid conditions

T. Kida, S. Kishi, M. Yuasa, K. Shimanoe, N. Yamazoe

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

Abstract

In order to improve the stability of a NASICON (Na3Zr 2Si2PO12; Na+ conductor)-based potentiometric CO2 sensor under humid conditions, a new solid-reference electrode of the BiCuVOx (Bi2Cu0.1V 0.9O5.35)/perovskite-type oxide (La0.6Sr 0.4Co0.02Ni0.02Fe0.2O3) composite was investigated. The fabricated electrochemical cell (CO 2+O2, Au/ Li2CO3-BaCO3/ NASICON/ BiCuVOx-La0.6Sr0.4Co0.78Ni 0.02Fe0.2O3, O2) responded well to changes in CO2 concentration (100-400 ppm) at 400-450 °C under high humid conditions (86 %RH) without degradation. The sensor device also exhibited a good warming-up characteristic, i.e., the electromotive force of the device quickly reached a steady and constant value when the sensor operation is re-started even after the sensor was exposed to high humid air at room temperature.

Original languageEnglish
Title of host publicationTRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages975-978
Number of pages4
DOIs
Publication statusPublished - Dec 1 2007
Event4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07 - Lyon, France
Duration: Jun 10 2007Jun 14 2007

Publication series

NameTRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems

Other

Other4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07
CountryFrance
CityLyon
Period6/10/076/14/07

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All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Kida, T., Kishi, S., Yuasa, M., Shimanoe, K., & Yamazoe, N. (2007). Nasicon-based planar-type cO2 sensor attached with solid reference electrode stable under high humid conditions. In TRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems (pp. 975-978). [4300295] (TRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems). https://doi.org/10.1109/SENSOR.2007.4300295