Diode-type Gas Sensors Fabricated with a Titania Film on a Ti Plate and Pd-Pt Electrodes-Effects of Polymer Coating on the Hydrogen-sensing Properties-
Diode-type Gas Sensors Fabricated with a Titania Film on a Ti Plate and Pd-Pt Electrodes-Effects of Polymer Coating on the Hydrogen-sensing Properties-
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钛板上二氧化钛薄膜和 Pd-Pt 电极制作的二极管型气体传感器-聚合物涂层对氢传感性能的影响-
DOI：
10.1088/1757-899x/18/21/212006
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Takeo Hyodo
中科院分区：
文献类型：
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作者：
宮崎秀俊;田中優;飯塚拓也;井村敬一郎;木村真一;西野洋一;A. Matsuda;Takeo Hyodo
研究了用钛片阳极氧化法制备的TiO 2薄膜和Pd Pt电极（Pd-Pt/TiO 2）制成的二极管型气敏元件的H2响应特性以及聚合物涂层对Pd-Pt/TiO 2气敏元件的影响。Pd-Pt/TiO 2传感器在250 ℃干燥N2中的H2响应大于在干燥空气中的H2响应，但在空气中加入水分降低了H2响应的O2浓度依赖性。在较低温度（50 ℃）下，响应急剧下降，但在干燥和潮湿条件下，在N2中的响应大于在空气中的响应。在Pd-Pt/TiO 2传感器上涂敷聚合物，提高了传感器在湿空气和N2中的H2响应，降低了H2响应的O2浓度依赖性。
H 2 responses of a diode-type gas sensor fabricated with a TiO 2 film prepared by anodization of a Ti plate and Pd-Pt electrodes (Pd-Pt/TiO 2) and the effects of polymer coating on the Pd-Pt/TiO 2 sensor were investigated in this study. The H 2 response of the Pd-Pt/TiO 2 sensor in dry N 2 was larger than that in dry air at 250 C, but the addition of moisture into the atmosphere reduced O 2 concentration dependence of H 2 response. The responses decreased drastically at lower temperature (50 C), but the responses in N 2 were larger than those in air under both dry and wet conditions. The coating of polymer on the Pd-Pt/TiO 2 sensor increased the H 2 responses in wet air and N 2 and reduced O 2 concentration dependence of H 2 responses.