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Development of Solid Electrolyte Sensors Operative at Ordinary Temperature

Research Project

Project/Area Number 60850151
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field 工業物理化学
Research InstitutionKyushu University

Principal Investigator

YAMAZOE Noboru  Graduate School of Engineering Sciences, Kyushu University, 国立大学(その他), 教授 (40037817)

Co-Investigator(Kenkyū-buntansha) 五百蔵 弘典  (株)フィカ゛ロリサーチ, 代表取締役
KUWATE Shigeki  Department of Industrial Chemistry, Niihama College of Technology, 工業化学科, 講師 (60110160)
TERAOKA Yasutake  Graduate School of Engineering Sciences, Kyushu University, 総合理工, 助手 (70163904)
MIURA Norio  Graduate School of Engineering Sciences, Kyushu University, 総合理工, 助教授 (70128099)
IHOKURA Kousuke  Figaro Research Inc.
Project Period (FY) 1985 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥8,900,000 (Direct Cost: ¥8,900,000)
Fiscal Year 1986: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1985: ¥8,000,000 (Direct Cost: ¥8,000,000)
KeywordsGas sensor / Solid Electrolyte / Antimonic Acid / Lanthanum Fluoride / Hydrogen / Carbon Monoxide / 酸素
Research Abstract

This project has aimed at developing new solid state gas sensors operative at ordinary temperature using solid electrolyte, i.e., <H_2> and CO sensor using proton conductors and oxygen sensor using La <F_3> . The results obtained are as follows.
1. Proton conductor sensor: Sensor elements were essentially based on the electrochemical cell (Pt black !proton conductor!Pt black) in which antimonic acid was mainly used as proton conductor. The sensors developed in this project were found to be sensitive to small amounts of <H_2> and CO in air at room temperature and could be classified in the following three categories according to the out-put signals used.
(1) Potentiometric sensor; An electromotive force ultilized as sensor signal of the potentiometric sensor was proportional to a logarithum of <H_2> and CO concentration in air and thus this type of sensor was fit for detecting sample gases in a wide-ranging concentration.
(2) Amperometric sensor; A short circuit current ultilized as sensor … More signal of the amperometric sensor was in direct proportion to the sample gas concentration under the constant humidity. The amperometric sensor had an advantage over potentiometric one in precise measurement of gas concentration.
(3) Four-probe type sensor; Under the short circuit condition, the potential difference which could be detected by Ag probes inserted in the proton conductor was produced in the proton conductor by the contact of the sensing Pt electrode with the sample gas. The potential difference was a linear function of <H_2> concentration independent of humidity in an ambient atmosphere.
2. Lanthanum fluoride oxygen sensor; The sensor composed the electrochemical cell (Sn,Sn <F_2> !La <F_3> !Pt, <O_2> )and an electromotive force of the cell was found to change in proportion to a logarithum of oxygen partial pressure even at room temperature.
(1) Single crystal sensor; While the newly fabricated elements showed very slow response, exposure to water vapor at 150 ゜C followed by the repetition of response to oxygen reduced the 90% response time to about 2 min at 25 ゜C. This sensor could also respond sensitively to dissolved oxygen in water.
(2) Spputered film sensor; By using the sputtered La <F_3> film ( 5 <micro> m thick), the 90% respnse time could be decreased to ca. 30 sec after water vapor treatment. Less

Report

(3 results)
  • 1986 Annual Research Report   Final Research Report Summary
  • 1985 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] Noboru Yamazoe: Transducers '85. 340-343 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 三浦則雄: 日本化学会誌. 1985. 1644-1649 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 三浦則雄: 日本化学会誌. 1986. 435-440 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: Proceedings of the 2nd International Meeting on Chemical Sensors. 289-292 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: Fundamentals and Applications of Chemical Sensor,ACS. 203-214 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: Proceedings of the 6th Sensor Symposium. 97-100 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: Chemistry Letters. 1987. 319-322 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 桑田茂樹: 日本化学会誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: Journal of Electrochemical Society.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: Sensors and Actuators.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: "Developmemt of Proton Conductor Gas Sensor" Transducers '85. 340-343 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: "Humidity-sensing Characteristics of Antimonic Acid Proton Conductor" Nippon Kagaku Kaishi. 1985. 1644-1649 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: "Development of Solid State Proton Conductor Gas Sensor Operative at Ordinary Temperature" Nippon Kagaku Kaishi. 1986. 435-440 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: "Solid State Oxygen Sensor Operative at Room Temperature" Proceedings of the 2nd International Meeting on Chemical Sensors. 289-292 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: "Amperometric Proton-conductor Sensor for Detecting Hydrogen and Carbon Monoxide at Room Temperature" Fundamentals and Applications of Chemical Sensors, ACS. 203-214 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: "Proton Conductor Gas Sensor Insensitive to Humidity" Proceedings og the 6th Sensor Symposium. 97-100 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: "A Solid-state Proton Conductor Sensor with an Ammonia Sensitivity at Room Temperature" Chemistry Letters. 1987. 319-322 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Shigeki Kuwata: "Potentiometric Dissolved Oxygen Sensor Using Proton Conductors" Nippon Kagaku Kaishi.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Norio Miura: "Four-probes Type Gas Sensors Using Solid-state Proton Conductor Sensitive to Hydrogen at Room Temperature" Jounal of Electrochemical Society.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: "Potentiometric Solid State Oxygen Sensor Using Lanthanum Fluoride Oprative at Room Temperature" Sensors and Actuatore.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Noboru Yamazoe: Proceedings of the 2nd International Meeting on Chemical Sensors. 289-292 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Norio Miura: Fundamentals and Applications of Chemical Sensors,ACS. 203-214 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Noboru Yamazoe: Proceedings of the 6th Sensor Symposium. 97-100 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] Norio Miura: Chemistry Letters. 1987. 319-322 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 桑田茂樹: 日本化学会誌.

    • Related Report
      1986 Annual Research Report
  • [Publications] Norio Miura: Journal of Electrochemical Society.

    • Related Report
      1986 Annual Research Report
  • [Publications] Noboru Yamazoe: Sensors and Actuators.

    • Related Report
      1986 Annual Research Report
  • [Publications] 日本化学会誌. 1986-3. (1986)

    • Related Report
      1985 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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