Reliability of commercially available hydrogen sensors for detection of hydrogen at critical concentrations: Part II - selected sensor test results
Reliability of commercially available hydrogen sensors for detection of hydrogen at critical concentrations: Part II - selected sensor test results
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DOI：
10.1016/j.ijhydene.2008.10.033
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发表时间：
2009-01-01
影响因子：
7.2
通讯作者：
Moretto, P.
中科院分区：
文献类型：
--
作者：
Boon-Brett, L.;Bousek, J.;Moretto, P.
可靠的氢传感器对于检测氢在未来车辆中的意外释放至关重要。为了评估氢安全传感器在汽车应用的典型条件下的性能，已经定义了测试协议。它已经通过对市售氢传感器进行测试进行了实验评估。催化传感器精确测量氢气浓度，传感器响应在很大程度上与环境参数无关。但它们对一氧化碳有明显的交叉敏感性，检测限较高。金属氧化物CO2传感器具有低的检测极限，并且显示出对一氧化碳的低交叉灵敏度，然而几乎所有这些样品显示出差的准确度和对环境参数的强依赖性。电化学传感器也具有较低的检测限，然而环境参数、交叉灵敏度和准确度测试显示出结果的高变化。对有限数量的热导率传感器进行的测试突出了其高检测限和对温度的强烈依赖性。(C)2008年国际氢能协会。由爱思唯尔有限公司出版。保留所有权利。
Reliable hydrogen sensors are essential to detect accidental hydrogen releases when hydrogen will be used to fuel future vehicles. To assess the performance of hydrogen safety sensors under conditions typical of automotive applications a test protocol has been defined. It has been experimentally evaluated by performing tests on commercially available hydrogen sensors. Catalytic sensors measured hydrogen concentration accurately and sensor response was largely independent of ambient parameters. However they were significantly cross sensitive to carbon monoxide and the detection limit was high. metal-oxide semiconductive sensors had a low detection limit and showed a low cross sensitivity to carbon monoxide however almost all of these samples showed poor accuracy and a strong dependence on ambient parameters. Electrochemical sensors also had a low detection limit however ambient parameters, cross sensitivity and accuracy tests showed a high variation in results. Tests on a limited number of thermal conductivity sensors highlighted their high detection limit and strong dependence on temperature. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.