A New Catalytic Combustion-type Carbon Monoxide Gas Sensor Employing Precious Metal-free CO Oxidizing Catalyst

A new catalytic combustion-type CO gas sensor was devised by using the precious metal-free CO oxidizing catalyst of 15.9 wt% La0.87Co1.13O3-loaded Ce0.67Zr0.18Sn0.15O2.0. Since the 15.9 wt% La0.87Co1.13O3-loaded Ce0.67Zr0.18Sn0.15O2.0 catalyst oxidizes CO completely at 130°C, the sensor showed smoot...

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Bibliographic Details
Published inISIJ International Vol. 55; no. 8; pp. 1699 - 1701
Main Authors Hosoya, Ayaka, Tamura, Shinji, Imanaka, Nobuhito
Format Journal Article
LanguageEnglish
Published The Iron and Steel Institute of Japan 01.01.2015
Subjects
carbon monoxide
catalytic combustion-type sensor
gas sensor
precious metal-free
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Summary:A new catalytic combustion-type CO gas sensor was devised by using the precious metal-free CO oxidizing catalyst of 15.9 wt% La0.87Co1.13O3-loaded Ce0.67Zr0.18Sn0.15O2.0. Since the 15.9 wt% La0.87Co1.13O3-loaded Ce0.67Zr0.18Sn0.15O2.0 catalyst oxidizes CO completely at 130°C, the sensor showed smooth and reproducible response to CO gas at ca. 130°C. Moreover, the sensor exhibited a linear relationship between response and CO gas concentration, along with short 50% response time of 20–40 s.
ISSN:0915-1559
1347-5460
DOI:10.2355/isijinternational.ISIJINT-2015-134