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Synthesis of highly crystallized particles of transition metal oxynitrides and construction of a photocatalytic system for visible light water splitting.

Research Project

Project/Area Number 20760526
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Catalyst/Resource chemical process
Research InstitutionThe University of Tokyo

Principal Investigator

TAKATA Tsuyoshi  The University of Tokyo, 大学院・工学系研究科, 助教 (80334499)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords光触媒 / オキシナイトライド / エネルギー変換 / 水分解 / 可視光 / フラックス / 異元素ドーピング / 微粒子 / 水素 / フラックス法 / ドーピング
Research Abstract

Some d0-type transition metal oxynitrides were studied as photocatalyst for water cleavage to improve their performance. A new route to obtain oxynitride particles by flux assisted nitridation method was established. Highly crystallized and mono-disperse fine particles of oxyntrides were obtained by the addition of NaCl or Na_2CO_3 as a flux. Regarding the synthesis of multi-components-oxynitrides, the addition of flux resulted in the improvement of the mixing state of constituents, which enabled the doping of different metals. It was found that the doping of metal cations with lower valence than that of the parent cation was effective to enhance the photocatalytic activity of H_2 evolution. This tendency was found to be applicable to various photocatalysts.

Report

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

    (21 results)

All 2010 2009 2008 Other

All Journal Article (12 results) (of which Peer Reviewed: 11 results) Presentation (8 results) Book (1 results)

  • [Journal Article] Highly-active tantalum(V)nitride nanoparticles prepared from a mesoporous carbon nitride template for photocatalytic hydrogen evolution under visible light irradiation2010

    • Author(s)
      L.Yuliati, J.H.Yang, X.Wang, K.Maeda, T.Takata, M.Antonietti, K.Domen
    • Journal Title

      J.Mater.Chem. (In press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article]2009

    • Author(s)
      M. Higashi, R. Abe, T. Takata, K. Domen
    • Journal Title

      Chem. Mater. 21

      Pages: 1543-1549

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Defect enginnering of photocatalyst by Doping of Aliovalent Metal Cations for Efficient Water Splitting2009

    • Author(s)
      T.Takata, K.Domen
    • Journal Title

      J.Phys.Chem.C 133

      Pages: 19386-19388

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photocatalytic Overall Water Splitting under Visible Light Using ATaO_2N(A=Ca, Sr, Ba)and WO_3 in a IO_3^-/I^- Shuttle Redox Mediated System2009

    • Author(s)
      M.Higashi, R.Abe, T.Takata, K.Domen
    • Journal Title

      Chem.Mater 21

      Pages: 1543-1549

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article]2008

    • Author(s)
      M. Higashi, R. Abe, K. Teramura, T. Takata, B. Ohtani K. Domen
    • Journal Title

      Chem. Phys. Lett. 37

      Pages: 120-123

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article]2008

    • Author(s)
      M. Higashi, R. Abe, A. Ishikawa, T. Takata, B. Ohtani K. Dome
    • Journal Title

      Chem. Lett.

      Pages: 138-139

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article]2008

    • Author(s)
      K. Ogisu, A. Ishikawa, Y. Shimodaira, T. Takata, H. Kobayashi, K. Domen
    • Journal Title

      J. Phys. Chem. C. 112

      Pages: 11978-11984

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Two step water splitting into H2 and O2 under visible light by ATaO2N(A=Ca, Sr, Ba)and WO3 with lO3-/l- shuttle redox mediator2008

    • Author(s)
      M. Higashi, R. Abe, K. Teramura . T. Takata. B. Ohtani K. Domen
    • Journal Title

      Chem. Phys. Lett 37

      Pages: 120-123

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Z-scheme overall water splitting on modified-TaON photocatalysts under visible light(λ<500nm)2008

    • Author(s)
      M. Higashi, R. Abe, A. Ishikawa, T. Takata, B. Ohtani K. Domen
    • Journal Title

      Chem. Lett 37

      Pages: 138-139

    • NAID

      10021077178

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electronic Band Structures and Photochemical Properties of La-Ga-ba sed Oxysulfides2008

    • Author(s)
      K. Ogisu, A. Ishikawa, Y. Shimodaira , T. Takata, H. Kobayashi, K. Domen
    • Journal Title

      J. Phys. Chem. C 112

      Pages: 11978-11984

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article]

    • Author(s)
      T. Takata, K. Domen
    • Journal Title

      J. Phys. Chem. C.

      Pages: 19386-19388

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article]

    • Author(s)
      L. Yuliati, J. H. Yang, X. Wang, K. Maeda, T. Takata, M. Antonietti, K. Domen
    • Journal Title

      J. Mater. Chem. (In press)

    • Related Report
      2009 Final Research Report
  • [Presentation]2010

    • Author(s)
      高田剛、堂免一成
    • Organizer
      第90回日本化学会春季年会
    • Place of Presentation
      近畿大学
    • Year and Date
      2010-03-29
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation]2009

    • Author(s)
      高田剛、堂免一成
    • Organizer
      第29回水素エネルギー協会大会
    • Place of Presentation
      タワーホール船堀
    • Year and Date
      2009-12-03
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation]2009

    • Author(s)
      高田剛、堂免一成
    • Organizer
      第103回触媒討論会
    • Place of Presentation
      宮崎大学
    • Year and Date
      2009-09-27
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation]2009

    • Author(s)
      高田剛、堂免一成
    • Organizer
      第89回日本化学会春季年会
    • Place of Presentation
      日本大学船橋キャンパス
    • Year and Date
      2009-03-28
    • Related Report
      2009 Final Research Report 2008 Annual Research Report
  • [Presentation] Defect engineering of photocatalysts by doping of aliovalent metal ca tions for efficient water splitting2009

    • Author(s)
      Tsuyoshi Takata
    • Organizer
      The University of Tokyo-Yonsei University Joint Symposium
    • Place of Presentation
      Koshiba Hall, The Univers ity of Tokyo
    • Year and Date
      2009-01-20
    • Related Report
      2008 Annual Research Report
  • [Presentation]2008

    • Author(s)
      高田剛、堂免一成
    • Organizer
      第102回触媒討論会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2008-09-26
    • Related Report
      2009 Final Research Report 2008 Annual Research Report
  • [Presentation]2008

    • Author(s)
      Tsuyoshi Takata, Kazunari Domen
    • Organizer
      14th International Conference on Catalysis
    • Place of Presentation
      COEX Seoul Korea
    • Year and Date
      2008-07-14
    • Related Report
      2009 Final Research Report
  • [Presentation] Photocatalytic activity of Ta3N5 prepared by flux method2008

    • Author(s)
      Tsuyoshi Takata, Kazunari Domen
    • Organizer
      14^<th> International Conference on Catalysis
    • Place of Presentation
      COEX Seoul Korea
    • Year and Date
      2008-07-14
    • Related Report
      2008 Annual Research Report
  • [Book] 光触媒を用いた水分解による水素製造2008

    • Author(s)
      堂免一成、高田剛
    • Total Pages
      9
    • Publisher
      光触媒を用いた水分解による水素製造
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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