Solid oxide amperometric CO sensor prepared by DC sputtering

Tatsumi Ishihara, Toshikazu Mori, Jun Iwata, Hidehisa Hagiwara, Shintaro Ida

Research output: Contribution to journalArticle

Abstract

An amperometric CO sensor using a solid oxide electrolyte was studied, and it was found that the oxygen pumping current increased with increasing CO concentration when Au(10 wt%)/In1.9Sn0.1O3 and RuO2(10 wt%) were used for cathode and anode, respectively, and La0.9Sr0.1Ga0.8Mg0.2O3 was used as the electrolyte. In this study, the electrode was prepared by DC sputtering. Although the morphology of the deposited electrode film was dense, the sensor responded sensitively to CO if the electrode was prepared by DC sputtering. Coating RuO2/La0.6Sr0.4CoO3 powder on a RuO2 electrode prepared by sputtering effectively increased sensitivity because of the increased surface area and oxidation activity, and a sensitivity to CO of ca. 19 μA/decade was achieved, which is ca. 4 times higher than that of powder painted electrodes (4.5 μA/decade) at 673 K in our previous study.

Original languageEnglish
Pages (from-to)271-277
Number of pages7
JournalSensors and Materials
Volume28
Issue number4
DOIs
Publication statusPublished - Jan 1 2016

Fingerprint

Amperometric sensors
Carbon Monoxide
Oxides
Sputtering
sputtering
direct current
Electrodes
electrodes
oxides
sensors
Powders
Electrolytes
electrolytes
sensitivity
Anodes
pumping
Cathodes
anodes
cathodes
Oxygen

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)

Cite this

Solid oxide amperometric CO sensor prepared by DC sputtering. / Ishihara, Tatsumi; Mori, Toshikazu; Iwata, Jun; Hagiwara, Hidehisa; Ida, Shintaro.

In: Sensors and Materials, Vol. 28, No. 4, 01.01.2016, p. 271-277.

Research output: Contribution to journalArticle

Ishihara, Tatsumi ; Mori, Toshikazu ; Iwata, Jun ; Hagiwara, Hidehisa ; Ida, Shintaro. / Solid oxide amperometric CO sensor prepared by DC sputtering. In: Sensors and Materials. 2016 ; Vol. 28, No. 4. pp. 271-277.
@article{bc0c43bb2b914799b5c15c4fc815b8d9,
title = "Solid oxide amperometric CO sensor prepared by DC sputtering",
abstract = "An amperometric CO sensor using a solid oxide electrolyte was studied, and it was found that the oxygen pumping current increased with increasing CO concentration when Au(10 wt{\%})/In1.9Sn0.1O3 and RuO2(10 wt{\%}) were used for cathode and anode, respectively, and La0.9Sr0.1Ga0.8Mg0.2O3 was used as the electrolyte. In this study, the electrode was prepared by DC sputtering. Although the morphology of the deposited electrode film was dense, the sensor responded sensitively to CO if the electrode was prepared by DC sputtering. Coating RuO2/La0.6Sr0.4CoO3 powder on a RuO2 electrode prepared by sputtering effectively increased sensitivity because of the increased surface area and oxidation activity, and a sensitivity to CO of ca. 19 μA/decade was achieved, which is ca. 4 times higher than that of powder painted electrodes (4.5 μA/decade) at 673 K in our previous study.",
author = "Tatsumi Ishihara and Toshikazu Mori and Jun Iwata and Hidehisa Hagiwara and Shintaro Ida",
year = "2016",
month = "1",
day = "1",
doi = "10.18494/SAM.2016.1177",
language = "English",
volume = "28",
pages = "271--277",
journal = "Sensors and Materials",
issn = "0914-4935",
publisher = "M Y U Scientific Publishing Division",
number = "4",

}

TY - JOUR

T1 - Solid oxide amperometric CO sensor prepared by DC sputtering

AU - Ishihara, Tatsumi

AU - Mori, Toshikazu

AU - Iwata, Jun

AU - Hagiwara, Hidehisa

AU - Ida, Shintaro

PY - 2016/1/1

Y1 - 2016/1/1

N2 - An amperometric CO sensor using a solid oxide electrolyte was studied, and it was found that the oxygen pumping current increased with increasing CO concentration when Au(10 wt%)/In1.9Sn0.1O3 and RuO2(10 wt%) were used for cathode and anode, respectively, and La0.9Sr0.1Ga0.8Mg0.2O3 was used as the electrolyte. In this study, the electrode was prepared by DC sputtering. Although the morphology of the deposited electrode film was dense, the sensor responded sensitively to CO if the electrode was prepared by DC sputtering. Coating RuO2/La0.6Sr0.4CoO3 powder on a RuO2 electrode prepared by sputtering effectively increased sensitivity because of the increased surface area and oxidation activity, and a sensitivity to CO of ca. 19 μA/decade was achieved, which is ca. 4 times higher than that of powder painted electrodes (4.5 μA/decade) at 673 K in our previous study.

AB - An amperometric CO sensor using a solid oxide electrolyte was studied, and it was found that the oxygen pumping current increased with increasing CO concentration when Au(10 wt%)/In1.9Sn0.1O3 and RuO2(10 wt%) were used for cathode and anode, respectively, and La0.9Sr0.1Ga0.8Mg0.2O3 was used as the electrolyte. In this study, the electrode was prepared by DC sputtering. Although the morphology of the deposited electrode film was dense, the sensor responded sensitively to CO if the electrode was prepared by DC sputtering. Coating RuO2/La0.6Sr0.4CoO3 powder on a RuO2 electrode prepared by sputtering effectively increased sensitivity because of the increased surface area and oxidation activity, and a sensitivity to CO of ca. 19 μA/decade was achieved, which is ca. 4 times higher than that of powder painted electrodes (4.5 μA/decade) at 673 K in our previous study.

UR - http://www.scopus.com/inward/record.url?scp=84982798378&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84982798378&partnerID=8YFLogxK

U2 - 10.18494/SAM.2016.1177

DO - 10.18494/SAM.2016.1177

M3 - Article

AN - SCOPUS:84982798378

VL - 28

SP - 271

EP - 277

JO - Sensors and Materials

JF - Sensors and Materials

SN - 0914-4935

IS - 4

ER -