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CO-Sensing Properties of Diode-Type Gas Sensors Employing Anodized Titania and Noble-Metal Electrodes under Hydrogen Atmosphere
http://hdl.handle.net/10069/38230
http://hdl.handle.net/10069/38230ebcd51d6-066e-4c0b-bef2-e034c7684d59
名前 / ファイル | ライセンス | アクション |
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Chemosensors6_7.pdf (4.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-05-30 | |||||
タイトル | ||||||
タイトル | CO-Sensing Properties of Diode-Type Gas Sensors Employing Anodized Titania and Noble-Metal Electrodes under Hydrogen Atmosphere | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Carbon monoxide | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Diode-type gas sensors | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Hydrogen | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Palladium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Platinum | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Hyodo, Takeo
× Hyodo, Takeo× Morinaga, Naoki× Shimizu, Yasuhiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | CO-sensing properties of diode-type sensors employing an anodized TiO2 film and noble-metal (M) electrodes (M/TiO2 sensor, M: Pd, Pt, and Pd-nPt, n: the amount of Pt (wt %) in the Pd-nPt electrode) were investigated at 50-250 °C in dry or wet H2. All the M/TiO2 sensors showed nonlinear I-V characteristics as a diode device in air and N2, but the I-V characteristics of the sensors were actually linear in H2 because of the negligible small height of Schottky barrier at their M/TiO2 interface. The Pd/TiO2 sensor showed no CO response in H2, but the Pt/TiO2 and Pd-nPt/TiO2 sensors responded to CO in H2. Among them, the Pd-64Pt/TiO2 sensor showed the largest CO response at 100 °C in H2. The reason why the mixing of Pd with Pt was effective in improving the CO response is probably because of a decrease in the amount of dissolved hydrogen species, an increase in the amount of dissociatively adsorbed hydrogen species, and an increase in the amount of adsorbed CO species in CO balanced with H2 by the mixing of Pt into Pd. The interference from moisture in the target gas on the CO response should be largely improved from a practical application perspective. | |||||
書誌情報 |
Chemosensors 巻 6, 号 1, p. 7, 発行日 2018-03 |
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出版者 | ||||||
出版者 | Multidisciplinary Digital Publishing Institute (MDPI) | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 22279040 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 22279040 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/chemosensors6010007 | |||||
権利 | ||||||
権利情報 | c 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Chemosensors, 6(1), 7; 2018 |