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Development of Highly Efficient Cobalt-based Catalyst for Direct Decomposition of Nitrous Oxide

Research Project

Project/Area Number 19310050
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental technology/Environmental materials
Research InstitutionKyoto University

Principal Investigator

INOUE Masashi  Kyoto University, 大学院・工学研究科, 教授 (30151624)

Co-Investigator(Kenkyū-buntansha) IWAMOTO Shinji  群馬大学, 大学院・工学研究科, 准教授 (50252482)
IMAMURA Seiichiro  京都大学, 大学院・工学研究科, 研究員 (00027898)
KANAI Hiroyoshi  京都大学, 大学院・工学研究科, 研究員 (40026050)
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2009: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2008: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2007: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Keywords環境保全技術 / 一酸化二窒素 / 触媒分解 / 亜酸化窒素 / 酸化コバルト / 環境触媒 / 窒素酸化物 / 地球温暖化ガス / アルカリプロモーター / 環境浄化 / 過渡応答法 / 笑気ガス / 脱硝反応 / 硝酸製造プロセス / コバルト触媒 / 表面酸素種 / アルカリ修飾触媒
Research Abstract

Alkali-doped Co_3O_4 catalysts were developed for direct decomposition of N_2O in the presence of O_2. The catalysts can be prepared by the precipitation method ; however, activity of the catalyst strongly depended on the crystal structure of the precipitate. It was found that the amount of alkali adsorbed on or occluded in the precursor determines the activity of the catalyst formed by calcination of the precursor. Effects of the alkali component on the catalyst activity was also examine and it was found that the alkali component facilitates the reduction of Co(III) species and thus facilitates the desorption of oxygen atoms formed by decomposition of N_2O. The effect of carbon dioxide in the feed gas upon the catalyst activity was examined, and it was found that CO_2 is strongly adsorbed on the catalyst and disturbs the activity of the catalyst.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (31 results)

All 2011 2010 2009 2008 2007

All Journal Article (14 results) (of which Peer Reviewed: 14 results) Presentation (17 results)

  • [Journal Article] Optimized Synthesis method for K/Co_3O_4 Catalyst towards Direct Decomposition of N_2O2011

    • Author(s)
      Hiroaki Yoshino, Chie H.Ohnishi, Saburo Hosokawa, Kenji Wada, Masashi Inoue
    • Journal Title

      J.Mater.Sci. 46

      Pages: 797-805

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct Decomposition of NO on Ba Catalysts Supported on Ce-Fe Mixed Oxides2010

    • Author(s)
      Won-Jong Hong, Shinji Iwamoto, Masashi Inoue
    • Journal Title

      Catal.Lett. 135

      Pages: 190-196

    • NAID

      120002514707

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct Decomposition of NO on Ba Catalysts Supported on Ce-Fe Mixed Oxide2010

    • Author(s)
      W.J.Hong, S.Iwamoto, M.Inoue
    • Journal Title

      Catalysis Letters 135

      Pages: 190-196

    • NAID

      120002514707

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis of Alkali-metal Cobalt Kambaldaite by Precipitation Method2009

    • Author(s)
      Chie H.Ohnishi, Kimihiro Asano, Hyung-Joon Jeon, Saburo Hosokawa, Shinji Iwamoto, Masashi Inoue
    • Journal Title

      Polyhedron 28

      Pages: 1295-1300

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis of Alkali-Metal Cobalt Kambaldite by Precipitation Method2009

    • Author(s)
      C.H.Ohnishi, K.Asano, H.-J.Jeon, S.Hosokawa, S.Iwamoto, M.Inoue
    • Journal Title

      Polyhedron 28

      Pages: 1295-1300

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis of Alkali-metal Cobalt Kambaldaite by Precipitation Method2009

    • Author(s)
      C. H. Ohnishi, K. Asano, H. -J. Jeon, S. Hosokawa, S. Iwamoto, M. Inoue
    • Journal Title

      Polyhedron 28

      Pages: 1295-1300

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Potassium-doped Co_3O_4 Catalyst for Direct Decomposition of N_2O2008

    • Author(s)
      Kimihiro Asano, Chie Ohnishi, Shinji Iwamoto, Yasushi Shiroya, Masashi Inoue
    • Journal Title

      Appl.Catal.B : Environmental 78

      Pages: 242-249

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct Decomposition of Nitrous Oxide in the Presence of Oxygen over Iridium Catalyst Supported on Alumina2008

    • Author(s)
      Chie Ohnishi, Shinji Iwamoto, Masashi Inoue
    • Journal Title

      Chem.Eng.Sci. 63

      Pages: 5076-5082

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Selective Catalytic Reduction of NO with C1-C3 Eeductants over Solvothermally Prepared Ga_2O_3-Al_2O_3 Catalyst : Effects of Water Vapor and Hydrocarbon Uptake2008

    • Author(s)
      Y. Miyahara, M. Takahashi, T. Masuda, S. Imamura, H. Kanai, S. Iwamoto, T. Watanabe, M. Inoue
    • Journal Title

      Applied Catalysis B : Environmental 84

      Pages: 289-296

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct Decomposition of Nitrous Oxide in the Presence of Oxygen over Iridium Catalyst Supported on Alumina2008

    • Author(s)
      C. Ohnishi, S. Iwamoto, M. Inoue
    • Journal Title

      Chemical Engineering Science 63

      Pages: 5076-5082

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Potassuium-Doped Co_3O_4 Catalyst for Direct Decomposition of N_2O2008

    • Author(s)
      Kimihiro Asano, Chie Ohnishi, Shinji Iwamoto, Yasushi Shioya, Masashi Inoue
    • Journal Title

      Appl. Catal. C: Environmental 78

      Pages: 242-249

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Alkali-doped Co_3O_4Catalysts for Direct Decomposition of N_2O in the Presence of Oxygen2007

    • Author(s)
      Chie Ohnishi, Kimihiro. Asano, Shinji Iwamoto, K.Chikama, Masashi Inoue
    • Journal Title

      Catal Today 12

      Pages: 145-150

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Alkali-Doped Co_30_4 Catalysts for Direct Decomposition of N_2O in the Presence of of Oxygen2007

    • Author(s)
      Chie Ohnishi, Kimihiro Asano, Shinji Iwamoto, Katsumi Chikama, Masashi Inoue
    • Journal Title

      Catal. Today 120

      Pages: 145-150

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Derect Decomposition of Nitric Oxide over Ba Catalysts Supported on CeO_2-Based Mixed Oxides2007

    • Author(s)
      Shinji Iwamoto, Ryosuke Takahashi, Masashi Inoue
    • Journal Title

      Appl. Catal. C: Environmental 70

      Pages: 145-150

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] K-Co_3O_4触媒によるN_2O分解における窒素と酸素の脱離過程と水の影響2010

    • Author(s)
      西山友基・吉野広晃・細川三郎・和田健司・井上正志
    • Organizer
      第3回触媒表面化学研究発表会
    • Place of Presentation
      大阪市
    • Year and Date
      2010-10-15
    • Related Report
      2009 Final Research Report
  • [Presentation] N_2O直接分解用K-ドープCo_3O_4触媒の修飾2010

    • Author(s)
      西山友基・吉野宏晃・細川三郎・和田健司・井上正志
    • Organizer
      日本化学会第90回年会
    • Place of Presentation
      横浜市
    • Year and Date
      2010-03-28
    • Related Report
      2009 Final Research Report
  • [Presentation] N_2O直接分解用K修飾Co_3O_4触媒からの酸素の脱離挙動2010

    • Author(s)
      吉野宏晃・西山友基・原田千絵・細川三郎・和田健司・井上正志
    • Organizer
      第105回触媒討論会
    • Place of Presentation
      京都市
    • Year and Date
      2010-03-24
    • Related Report
      2009 Final Research Report
  • [Presentation] N_2O直接分解用K修飾Co_3O_4触媒からの酸素の脱離挙動2010

    • Author(s)
      吉野広晃, 西山友基, 原田千絵, 細川三郎, 和田健司, 井上正志
    • Organizer
      第105回触媒討論会
    • Place of Presentation
      京都テルサ
    • Year and Date
      2010-03-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] Direct NO decomposition over BaO-CeO_2-FeOx catalyst prepared by solvothermal method2010

    • Author(s)
      Won-Jong Hong, Mao Ueda, 岩本伸司, 井上正志
    • Organizer
      ISHA 2010
    • Place of Presentation
      Beijing
    • Related Report
      2009 Final Research Report
  • [Presentation] Direct NO decomposition over Ce-Mn mixed oxides modified with various metal species (alkali, alkaline earth, and noble metals) and their CO_2-TPD behavior2010

    • Author(s)
      Won-Jong Hong, Shinji Iwamoto, 井上正志
    • Organizer
      TOCAT6/APCAT5
    • Place of Presentation
      Sapporo
    • Related Report
      2009 Final Research Report
  • [Presentation] K修飾Co_3O_4触媒によるN_2O直接分解2009

    • Author(s)
      吉野広晃・大西千絵・細川三郎・和田健司・井上正志
    • Organizer
      日本化学会第89回春季年会
    • Place of Presentation
      船橋市
    • Year and Date
      2009-03-28
    • Related Report
      2009 Final Research Report
  • [Presentation] K修飾Co-Ni触媒によるN_2O直接分解2009

    • Author(s)
      吉野宏晃・大西千絵・細川三郎・和田健司・井上正志
    • Organizer
      第18回日本エネルギー学会大会
    • Place of Presentation
      札幌市
    • Related Report
      2009 Final Research Report
  • [Presentation] アルカリ修飾Co_3O_4触媒を用いた一酸化二窒素直接分解2008

    • Author(s)
      原田千絵・吉野広晃・岩本伸司・井上正志
    • Organizer
      日本エネルギー学会関西支部第53回研究発表会・石油学会関西支部第17回研究発表会
    • Place of Presentation
      京都市
    • Year and Date
      2008-12-05
    • Related Report
      2009 Final Research Report
  • [Presentation] Kinetic Study of Direct Decomposition of Nitrous Oxide over K-Doped Co_3O_4 Catalyst2008

    • Author(s)
      C. H. Ohnishi, H. Yoshino, S. Imamura, S. Iwamoto, M. Inoue
    • Organizer
      XVII International Conference on Chemical Reactors
    • Place of Presentation
      Valletta, Malta
    • Year and Date
      2008-10-01
    • Related Report
      2008 Annual Research Report
  • [Presentation] N_2O直接分解用K修飾Co_3O_4触媒の調製法の検討2008

    • Author(s)
      吉野広晃、大西千絵、岩本伸司、井上正志
    • Organizer
      日本化学会
    • Place of Presentation
      立教大学・東京
    • Year and Date
      2008-03-27
    • Related Report
      2007 Annual Research Report
  • [Presentation] N_2O直接分解用K修飾Co_3O_4触媒の調製法の検討2008

    • Author(s)
      吉野広晃・大西千絵・岩本伸司・井上正志
    • Organizer
      日本化学会第88春季年会
    • Place of Presentation
      船橋市
    • Year and Date
      2008-03-26
    • Related Report
      2009 Final Research Report
  • [Presentation] Direct Decomposition of Nitrous Oxide over a K-doped Co_3O_4 Catalyst in the Presence of Oxygen2008

    • Author(s)
      原田千絵, 吉野宏晃, Seiichiro Imamura, 岩本伸司, 井上正志
    • Organizer
      CHEMREACTOR-18
    • Place of Presentation
      Malta
    • Related Report
      2009 Final Research Report
  • [Presentation] K就職Co_3O_4触媒によるN_2O直接分解2008

    • Author(s)
      大西千絵・吉野弘明・岩本信二・井上正志
    • Organizer
      第102回触媒討論会
    • Place of Presentation
      名古屋市
    • Related Report
      2009 Final Research Report
  • [Presentation] K修飾Co_3O_4触媒を用いたN_2O直接分解2008

    • Author(s)
      大西千絵・吉野広晃・岩本伸司・井上正志
    • Organizer
      石油学会第57回研究発表会
    • Place of Presentation
      東京都
    • Related Report
      2009 Final Research Report
  • [Presentation] Decomposition of Nitrous Oxide over Fe-doped Co_3O_4 Catalysts in Presence of Oxygen and Water2007

    • Author(s)
      原田千絵, 吉野広晃, 岩本伸司, 井上正志
    • Organizer
      The 11^<th> Korea-Japan Symposium on Catalysis
    • Place of Presentation
      Seoul
    • Related Report
      2009 Final Research Report
  • [Presentation] アルカリ修飾Co_3O_4触媒による水共存下におけるN_2Oの直接分解2007

    • Author(s)
      大西千絵・浅野公洋・岩本伸司・井上正志
    • Organizer
      第100回触媒討論会
    • Place of Presentation
      札幌市
    • Related Report
      2009 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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