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Detection of combustible hydrogen-containing gases by using impedancemetric zirconia-based water-vapor sensor

机译:使用基于阻抗的氧化锆水蒸气传感器检测可燃含氢气体

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摘要

A newly proposed impedancemetric water-vapor sensor using yttria-stabilized zirconia (YSZ) and In2O3 sensing-electrode (SE) was found to be effective in the detection of various combustible hydrogen-containing gases, such as H-2 and hydrocarbons, at 900 degrees C under dry condition. This sensor can also detect the hydrogen-containing gases without interference of other gases such as CO, CO2, NO and NO2. Based on the results of gas chromatography, it is speculated that the hydrogen-containing gases are completely oxidized to H2O and CO, due to the high catalytic activity of In2O3 for the gas-phase oxidation reaction at high temperature, and then the produced H2O can be detected by the present water-vapor sensor. (c) 2005 Elsevier B.V. All rights reserved.
机译:发现一种新的使用氧化钇稳定的氧化锆(YSZ)和In2O3感应电极(SE)的阻抗式水蒸气传感器可有效检测900℃下的各种可燃含氢气体,例如H-2和碳氢化合物。干燥条件下的摄氏温度。该传感器还可以检测含氢气体,而不会受到其他气体(例如CO,CO2,NO和NO2)的干扰。根据气相色谱法的结果推测,由于In 2 O 3对高温下的气相氧化反应具有高催化活性,因此含氢气体被完全氧化为H 2 O和CO,然后生成的H 2 O由当前的水蒸气传感器检测到。 (c)2005 Elsevier B.V.保留所有权利。

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