NOx-Sensing Characteristics of Sensor with La0.75Sr0.25Cr0.5Mn0.5O3 Sensing Electrode

Yin Lin Wu; Hai Yan Zhao; Ling Wang

doi:10.4028/www.scientific.net/AMM.339.109

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NO_x-Sensing Characteristics of Sensor with La_0.75Sr_0.25Cr_0.5Mn_0.5O₃ Sensing Electrode

Abstract:

Electrochemical sensors based on tubular yttria-stabilized zerconia (YSZ) with the perovskite-type oxide as a sensing-electrode (SE), which is prepared by sol-gel method, were fabricated and examined for NO₂ detection in the temperature range 400~700°C. The results show that La_0.75Sr_0.25Cr_0.5Mn_0.5O₃(LSCM), shows extreme sensitivity to NO₂. The EMF varies linearly as a function of the concentration of NO₂(0 ~ 463 ppm) at 500 °C.