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CO-sensing Properties of Potentiometric Gas Sensors Using an Anion-conducting Polymer Electrolyte and Au-loaded Metal Oxide Electrodes
http://hdl.handle.net/10069/35340
http://hdl.handle.net/10069/353404a5ff49f-6f5b-484b-a07b-147bb8e8aafd
名前 / ファイル | ライセンス | アクション |
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EleAct166_232.pdf (18.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-06-02 | |||||
タイトル | ||||||
タイトル | CO-sensing Properties of Potentiometric Gas Sensors Using an Anion-conducting Polymer Electrolyte and Au-loaded Metal Oxide Electrodes | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Anion-conducting polymer | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Carbon monoxide | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Gas sensor | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Gold nanoparticle | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Metal oxide | |||||
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 |
Goto, Toshiyuki
× Goto, Toshiyuki× Hyodo, Takeo× Ueda, Taro× Kamada, Kai× Kaneyasu, Kazunari× Shimizu, Yasuhiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | CO-sensing properties of potentiometric gas sensors using an anion-conducting polymer (ACP) as an electrolyte and metal oxides loaded with and without Au as electrodes (EC(MO) or EC(nAu/MO(Tm)), respectively, MO: metal oxide (In2O3, ZnO or Co3O4), n: the loading amount of Au, 0.5?2.0 wt%, T: heat-treatment temperature, m: heat-treatment atmosphere, air or H2) have been investigated in wet synthetic air (57%RH) at 30 °C. In addition, H2-sensing properties of these sensors have also been investigated in the same gaseous conditions, to evaluate their CO selectivity against H2. All of the EC(MO) sensors showed relatively small changes in electromotive force (EMF), i.e. responses, to both CO and H2, but the Au loading to In2O3 and ZnO drastically improved the magnitude of CO response of the EC(In2O3) and EC(ZnO) sensors, respectively. The EC(2.0Au/In2O3(400air)) sensor showed larger CO response, faster CO response speed, excellent CO selectivity against H2 and better long-term stability than those of the EC(2.0Au/ZnO(400air)) sensor. The influence of moisture on the CO response of the EC(2.0Au/In2O3(400air)) sensor was almost negligible in the humidity range of 40?100%RH. The magnitude of CO response of the EC(2.0Au/In2O3(400air)) sensor in wet synthetic air showed a good linear relationship with CO concentration, but the CO response was largely affected by the concentration of O2. These results indicate that the EMF of the EC(2.0Au/In2O3(400air)) sensor is probably determined by the mixed potential resulting from CO oxidation and O2 reduction. The heat-treatment conditions of the 2.0 wt% Au-loaded In2O3 powder largely affected the CO-sensing properties of the EC(2.0Au/In2O3(Tm)) sensors. Among these sensors heat-treated in various conditions, the as-fabricated EC(2.0Au/In2O3(250H2)) sensor showed the most excellent CO selectivity against H2 in their concentration range of 10?3000 ppm. | |||||
書誌情報 |
Electrochimica Acta 巻 166, p. 232-243, 発行日 2015-06-01 |
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出版者 | ||||||
出版者 | Elsevier Ltd | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00134686 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.electacta.2015.03.045 | |||||
権利 | ||||||
権利情報 | c 2015, Elsevier Ltd. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International 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 | Electrochimica Acta, 166, pp.232-243; 2015 |