Real-Time Monitoring of Hydrogen Sulfide in Air by Cataluminescence-Based Gas Sensor

Kao Wen Zhou; Hong Wei Yang; Xu Fei Li; Yan Ying Yang

doi:10.4028/www.scientific.net/AMM.241-244.934

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 241-244Real-Time Monitoring of Hydrogen Sulfide in Air by...

Real-Time Monitoring of Hydrogen Sulfide in Air by Cataluminescence-Based Gas Sensor

Abstract:

A cataluminescence (CTL)-based gas sensor utilizing nano-sized Mn_1.5Zr₂O₇ as the sensing material for the determination of hydrogen sulfide in air was proposed. The gas sensor showed high selectivity for hydrogen sulfide at 450 nm and satisfying activity at 320°C. The linear range of the CTL intensity versus concentration of hydrogen sulfide was 2~95 mg/m³, and the detection limit (3σ) was 1.5 mg/m³. No interference was observed while the foreign substances, such as formaldehyde, ammonia, ethanol, benzene, carbon monoxide and sulfur dioxide, were passing through the sensor. The gas sensor displayed good stability for continuously introducing hydrogen sulfide over 60 h, and allowed real-time monitoring of hydrogen sulfide in air.

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Periodical:

Applied Mechanics and Materials (Volumes 241-244)

Pages:

934-937

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.241-244.934

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Online since:

December 2012

Authors:

Kao Wen Zhou*, Hong Wei Yang, Xu Fei Li, Yan Ying Yang

Keywords:

Cataluminescence, Gas Sensor, Hydrogen Sulfide, Mn_1.5Zr₂O₇, Nanosized Materials

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* - Corresponding Author

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