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Development of a high quality NOx sensor with novel micro structure electrode using perovskite porous sphere powder

Research Project

Project/Area Number 16K05878
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Green/Environmental chemistry
Research InstitutionJapan Fine Ceramics Center

Principal Investigator

Takahashi Seiji  一般財団法人ファインセラミックスセンター, その他部局等, 主席研究員 (90236290)

Research Collaborator Okawa Hajime  
Suehiro Satoshi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsセンサ / 多孔質電極 / 多孔質粒子 / 噴霧熱分解法 / 化学プロセス / 酸化窒素 / NOx / 固体電解質 / 混合伝導体 / NOx / 多孔質 / 電極触媒 / 先端機能デバイス / ガスセンサ / セラミックス / 二酸化炭素排出削減 / 大気汚染防止・浄化
Outline of Final Research Achievements

Sensor elements were manufactured using solid spherical particles and porous spherical particles as raw materials of electrode materials. The response electric current for the electrode using the porous spherical particle was smaller than the electrode using the solid spherical particle, but, the gas selectivity of the former was superior to the latter. The response time (response ratio) at which 90% of response electric current was restored after changing NO gas and base gas was evaluated. The response times for the electrodes using solid spherical particles and porous spherical particles were 30 and 39 seconds, respectively, when air was changed to NO gas, and were 10 and 16 seconds, respectively, when NO gas was changed to air. It was found the response ratio of the sensor was improved by using the porous spherical particles. This result was considered to be caused by the better gas penetration performance in the porous electrode.

Academic Significance and Societal Importance of the Research Achievements

La系ペロブスカイトのNO分解触媒活性を電流検出型ジルコニアセンサは酸素共存下でNOx選択応答特性がある有望な技術である。また、多孔質球状粒子を用いた検知極の微細構造制御することで、応答電流値や応答速度の改善が可能な微細構造の形成は、固体電解質型センサ研究分野において学術的インパクトが大きい。
原料粒子の形状を制御することで電極の微構造を制御し、センサの応答特性を改善できることがわかったため、他の種々のセンサ電極にも応用展開が期待できる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017 2016 Other

All Journal Article (2 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] La0.8Sr0.2MnO3多孔質球状粒子を用いた触媒電極作製とNOxセンサ特性評価2017

    • Author(s)
      末廣智、高橋誠治
    • Journal Title

      セラミックス

      Volume: 52 Pages: 559-562

    • Related Report
      2017 Research-status Report
  • [Journal Article] Synthesis and NOx sensing evaluation of hollow/porous La0.8Sr0.2MnO3 microspheres2016

    • Author(s)
      Satoshi Suehiro, Hajime Okawa and Seiji Takahashi
    • Journal Title

      RSC advances

      Volume: 6 Issue: 59 Pages: 53919-53924

    • DOI

      10.1039/c6ra08587c

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] A process to control the microstructure of porous alumina using spherical porous powder2019

    • Author(s)
      S.Takahashi, S. Suehiro, H. Okawa and T. Kimura
    • Organizer
      43rd International Conference and Expo on Advanced Ceramics and Composites
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] LSMを検知極として用いた電流検出型NOxセンサの特性2018

    • Author(s)
      高橋誠治、末廣智、大川元
    • Organizer
      日本セラミックス協会第31回秋季シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Synthesis and NOx sensing evaluation of solid and porous La0.8Sr0.2MnO3 microspheres2017

    • Author(s)
      Seiji TAKAHASHI, Satoshi SUEHIRO, Hajime OKAWA, Teiichi KIMURA
    • Organizer
      The 18th International Symposium on Eco-materials Processing and Design (ISEPD2017)
    • Place of Presentation
      自治会館(那覇)
    • Year and Date
      2017-02-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] La0.8Sr0.2MnO3多孔質粒子を用いた電極作製とNOxセンサ特性評価2016

    • Author(s)
      末廣智・大川元・木村禎一・高橋誠治
    • Organizer
      日本セラミックス協会第29回秋季シンポジウム
    • Place of Presentation
      広島大学
    • Year and Date
      2016-09-07
    • Related Report
      2016 Research-status Report
  • [Remarks] 電流検出型ジルコニアNOxセンサの高性能電極材料の開発

    • URL

      http://www.jfcc.or.jp/23_develop/13p17.html

    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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