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Effects of noble-metal loading and ultraviolet-light irradiation on gas-sensing properties of porous indium oxide films at room temperature
http://hdl.handle.net/10069/00041190
http://hdl.handle.net/10069/000411904439cc36-bf4b-46b7-9297-f539d6292f0b
名前 / ファイル | ライセンス | アクション |
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JCSJ129_676.pdf (5.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-01-28 | |||||
タイトル | ||||||
タイトル | Effects of noble-metal loading and ultraviolet-light irradiation on gas-sensing properties of porous indium oxide films at room temperature | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Semiconductor-type gas sensor | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Indium oxide | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Polymethylmethacrylate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Noble metal | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | UV-light irradiation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Nitrogen dioxide | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Hydrogen | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ethanol | |||||
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× IWANAGA, Azusa× ISHIDA, Keijiro× KAMADA, Kai× UEDA, Taro× SHIMIZU, Yasuhiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Fundamental gas-sensing properties of porous (pr-)In2O3 powders loaded with and without 0.5 mass % noble metal (pr-0.5N/In2O3 and pr-In2O3, respectively, N: noble metal (Au or Pd)) to NO2, H2, and ethanol balanced with dry air were investigated at 30 °C under UV-light irradiation (main wavelength: 365 nm). The spherical pr-0.5N/In2O3 and pr-In2O3 powders were prepared by ultrasonic-spray pyrolysis employing polymethylmethacrylate microspheres with a diameter of ca. 70 nm, which were synthesized by ultrasonic-assisted emulsion polymerization. The Au loading largely improved the NO2 response of the pr-In2O3 sensor, a ratio of the resistance in NO2 to that in air, especially under weak UV-light irradiation, because of the relatively large resistance in air. On the other hand, the Pd loading efficiently increased the difference in the conductance of the pr-In2O3 sensor between in NO2 and in air under the whole UV-light irradiation range. The UV-light irradiation is effective in improving the NO2-sensing properties of these sensors at room temperature, but the sensing performance was a little inferior to that operated at elevated temperatures under no UV-light irradiation. These sensors also responded to reducing gases, H2 and ethanol, under UV-light irradiation, and the responses to ethanol were much larger than those to H2. However, the responses to both the gases were much smaller than that to NO2. | |||||
書誌情報 |
Journal of the Ceramic Society of Japan 巻 129, 号 11, p. 676-682, 発行日 2021-11-01 |
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出版者 | ||||||
出版者 | 日本セラミックス協会 | |||||
出版者別言語 | ||||||
The Ceramic Society of Japan | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1348-6535 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.2109/jcersj2.21104 | |||||
権利 | ||||||
権利情報 | ©2021 The Ceramic Society of Japan. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by-nd/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | |||||
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 | Journal of the Ceramic Society of Japan, 129(11), pp. 676-682; 2021 |