WEKO3
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Enhancement of methylmercaptan sensing response of WO3 semiconductor gas sensors by gas reactivity and gas diffusivity
http://hdl.handle.net/10069/38519
http://hdl.handle.net/10069/38519ca678d97-2cfe-45e6-ba22-24132438e492
名前 / ファイル | ライセンス | アクション |
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SABC273_826.pdf (7.3 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-11-10 | |||||
タイトル | ||||||
タイトル | Enhancement of methylmercaptan sensing response of WO3 semiconductor gas sensors by gas reactivity and gas diffusivity | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CH3SH | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CH3SSCH3 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | positively charged adsorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ru-loaded WO3 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Semiconductor-type gas sensor | |||||
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 |
Ueda, Taro
× Ueda, Taro× Maeda, Takuya× Huang, Zhendong× Higuchi, Kotono× Izawa, Kuniyuki× Kamada, Kai× Hyodo, Takeo× Shimizu, Yasuhiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | WO3-based semiconductor-type gas sensors were fabricated, and their sensing properties to methylmercaptan (CH3SH) were examined in this study. The Ru loading on WO3 was an effective way of an increase in the CH3SH response. In addition, the CH3SH response increased with a decrease in the operating temperature as well as with an increase in the thickness of the Ru-loaded WO3 sensing layer. The increase in the porosity of the Ru-loaded WO3 sensors, which were fabricated by utilizing polymethylmethacrylate microspheres as a template, was also effective in improving the CH3SH response, especially at a low temperature of 150 °C. In addition, the lamination of the Ru-loaded WO3 sensor with an α-Al2O3 film improved the CH3SH response at 200 °C. Moreover, the Ru loading on the WO3 powder increased the catalytic activities of CH3SH oxidation, and CH3SH was partially oxidized to CH3SSCH3 at temperatures less than 330 °C. It was suggested that the increase in the positively charged adsorption of the partially oxidized products onto the bottom part of the sensing layer is effective for enhancing the CH3SH response, especially at lower operating temperatures. | |||||
書誌情報 |
Sensors and Actuators B: Chemical 巻 273, p. 826-833, 発行日 2018-11-10 |
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出版者 | ||||||
出版者 | Elsevier B.V. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09254005 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.snb.2018.06.122 | |||||
権利 | ||||||
権利情報 | c 2018 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Sensors and Actuators, B: Chemical, 273, pp.826-833; 2018 |