Design and development of highly H2-sensitive interfaces

H2 高敏感界面的设计和开发

• 批准号: 23360289
• 负责人: HYODO Takeo
• 金额: $ 12.48万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23360289/
• 关键词: ガスセンサ; ダイオード; 水素; ショットキー障壁; ヘテロ界面; 湿度; 酸素分圧; 合金

Diode-type gas sensors with an anodized TiO2 film on a Ti plate and noble-metal electrodes (Pd and/or Pt) have been fabricated, and the effects of the chemical state and composition of the Pd and Pt at the sensing-electrode surface on the H2-sensing properties have been investigated. The H2-sensing properties in air at 250C are largely dependent on the chemical state of the Pd-Pt electrode surface, and the H2 response and the response speed were improved by a decrease in the amount of Pt and the ratio of PdO to Pd on the electrode surface, respectively. The suitable coating of some polymers on the Pd-Pt sensing-electrode increased the H2 responses in wet air and N2 and reduced O2 concentration dependence of H2 responses. The modification of the small amount of Au on the sensing electrode (especially, Pt) drastically improved the H2 response at 250C, especially in dry air. In addition, the sensor with the Au/Pt electrode showed large and O2-independent H2 response under wet atmosphere.

在钛板上阳极氧化TiO 2薄膜和贵金属电极（Pd和/或Pt）的二极管型气体传感器已被制造，并在传感电极表面的Pd和Pt的化学状态和组成的影响的H2传感性能进行了研究。Pd-Pt电极在250 ℃空气中的H2敏感特性在很大程度上取决于电极表面的化学状态，并且H2响应和响应速度分别通过减少电极表面上的Pt量和PdO与Pd的比例来改善。在Pd-Pt敏感电极上适当地涂覆一些聚合物，可以提高H2在湿空气和N2中的响应，并降低H2响应的O2浓度依赖性。在传感电极（特别是Pt）上的少量Au的修饰显著改善了在250 ℃下的H2响应，特别是在干燥空气中。 此外，与Au/Pt电极的传感器表现出大的和O2独立的H2响应在潮湿的气氛下。

项目成果

H_2 Sensing Performance of Anodized TiO_2-based Diode-type Gas Sensors

阳极氧化TiO_2基二极管型气体传感器的H_2传感性能

• 发表时间: 2012
• 期刊: Proc. of the Korean Sensors Society Conference 2012
• 作者: S. Hashimoto;H. Takeda;H. Kanie;S. Honda and Y. Iwamoto;Yasuhiro Shimizu
• 通讯作者: Yasuhiro Shimizu

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-

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
• 发表时间: 2011
• 期刊: IOP Conference Series : Materials Science and Engineering
• 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
• 通讯作者: Takeo Hyodo

Effects of surface modification of Pd or Pt electrode of diodetype gas sensors with Au on the H_2 responses and cross-responses to some inflammable gases

Au二极管型气体传感器Pd或Pt电极表面修饰对某些可燃气体H_2响应和交叉响应的影响

• 发表时间: 2013
• 作者: Takeo Hyodo;Tomoki Yamashita;Ken Inoue and Yasuhiro Shimizu
• 通讯作者: Ken Inoue and Yasuhiro Shimizu

Effects of surface modification of Pd or Pt electrode of diode-type gas sensors with Au on the H2 responses and cross-responses to some inflammable gases

Au 二极管型气体传感器 Pd 或 Pt 电极表面修饰对某些易燃气体的 H2 响应和交叉响应的影响

• 发表时间: 2013
• 作者: Takuji Ube;Takashi Harumoto and Takashi Ishiguro;Takeo Hyodo
• 通讯作者: Takeo Hyodo

ガスセンサー, 化学便覧 応用化学編 第7版

气体传感器，化学手册应用化学版第七版

• 发表时间: 2013
• 作者: Yusyke Hosoki;Takuji Ube;and Takashi Ishiguro;清水康博
• 通讯作者: 清水康博