(Zn<sub>1</sub><sub>-<i>x</i></sub>Mg<i><sub>x</sub></i>)Cr<sub>2</sub>O<sub>4</sub>-TiO<sub>2</sub>系P型セラミックスガス感応素子の特性  [in Japanese] Characteristics of P-type (Zn<sub>1</sub><sub>-<i>x</i></sub>Mg<i><sub>x</sub></i>)Cr<sub>2</sub>O<sub>4</sub>-TiO<sub>2</sub> Ceramics for Gas-sensing Applications  [in Japanese]

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Author(s)

    • 寺田 二郎 Terada Jiro
    • 大阪工業大学ナノ材料マイクロデバイス研究センター Nanomaterials Microdevices Res. Center, Osaka Institute of Technology
    • 平原 陽介 Hirahara Yousuke
    • 大阪工業大学ナノ材料マイクロデバイス研究センター Nanomaterials Microdevices Res. Center, Osaka Institute of Technology
    • 大松 繁 [他] Omatu Sigeru
    • 大阪工業大学ナノ材料マイクロデバイス研究センター Nanomaterials Microdevices Res. Center, Osaka Institute of Technology
    • 佐々 誠彦 Sasa Shigehiko
    • 大阪工業大学ナノ材料マイクロデバイス研究センター Nanomaterials Microdevices Res. Center, Osaka Institute of Technology
    • 矢野 満明 Yano Mitsuaki
    • 大阪工業大学ナノ材料マイクロデバイス研究センター Nanomaterials Microdevices Res. Center, Osaka Institute of Technology

Abstract

Characteristics of 75mol%(Zn<sub>1-<i>x</i></sub>Mg<i><sub>x</sub></i>)Cr<sub>2</sub>O<sub>4</sub>-25mol%TiO<sub>2</sub> ceramics as a gas-sensing element were studied by aiming at the application to electronic nose systems for odor analysis and ethylene (C<sub>2</sub>H<sub>4</sub>) gas control in fruits ripening processes. These ceramics were prepared by sintering the powders of source compounds, and their sensitivities and response-times for the diluted gases of H<sub>2</sub>, NH<sub>4</sub>, C<sub>3</sub>H<sub>8</sub>, C<sub>2</sub>H<sub>4</sub>, CH<sub>4</sub>, and CO in air were examined. It was revealed that these ceramics were p-type and possessed high sensitivities based on the redox reaction by the adsorption and desorption of these gases even at the low concentrations of less than 10 ppm. The dependence on Mg composition <i>x</i> was also reported in relation to the electrical properties.

Journal

  • IEEJ Transactions on Sensors and Micromachines

    IEEJ Transactions on Sensors and Micromachines 134(9), 308-314, 2014

    The Institute of Electrical Engineers of Japan

Codes

  • NII Article ID (NAID)
    130004684899
  • NII NACSIS-CAT ID (NCID)
    AN1052634X
  • Text Lang
    JPN
  • ISSN
    1341-8939
  • NDL Article ID
    025800566
  • NDL Call No.
    Z16-B380
  • Data Source
    NDL  J-STAGE 
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