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Nanostructured Pr-doped Ceria (PCO) thin films as sensing electrodes in solid-electrolyte type gas sensors with enhanced toluene sensitivity
http://hdl.handle.net/10069/40001
http://hdl.handle.net/10069/400016b1662f3-0e20-4d3c-94ca-87921898684c
名前 / ファイル | ライセンス | アクション |
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SABC317_128037.pdf (2.3 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-12-18 | |||||
タイトル | ||||||
タイトル | Nanostructured Pr-doped Ceria (PCO) thin films as sensing electrodes in solid-electrolyte type gas sensors with enhanced toluene sensitivity | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Solid-electrolyte gas sensor | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | YSZ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Pulsed laser deposition | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | (PrCe)O2 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Toluene | |||||
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× Defferriere, Thomas× Hyodo, Takeo× Shimizu, Yasuhiro× Tuller, Harry L. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Pr0.1Ce0.9O2 (PCO) films, with columnar structure containing voids, were fabricated by pulsed laser deposition (PLD) and integrated into YSZ-based potentiometric gas sensor as a sensing electrodes (SEs). Sensors with PCO film thicknesses of 550, 1100 and 2200 nm, fabricated by controlling the number of PLD shots of 750, 1500 and 3000 respectively, were examined over the temperature range of 450?600 °C. The sensor output voltage, E, of all sensors showed increasing negative change with increasing toluene concentration. The sensor with the thickest PCO SE film (thickness: 2200 nm) showed a much larger toluene response at 450 °C than the others (PCO-SE thickness: 550, 1100 nm). Because PCO is a mixed ionic and electronic conductor and the morphology of SE was porous, the electrochemical oxidation reaction is viewed as occurring at the double phase boundaries ? DPBs (interfaces between PCO/gas) as well as triple phase boundaries ? TPBs (interfaces of PCO/YSZ/gas). Because a fraction of the toluene is catalytically oxidized in part during gas diffusion within the SE films, especially at lower operating temperatures, the much larger toluene response can be explained by the electrochemical oxidation reaction of the partially oxidized products together with toluene at the TPBs and DPBs. | |||||
書誌情報 |
Sensors and Actuators B: Chemical 巻 317, p. 128037, 発行日 2020-05-06 |
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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.2020.128037 | |||||
権利 | ||||||
権利情報 | c 2020 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, 317, art.no.128037; 2020 |