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Preparation of Carbon-Coated Catalyst Particles -Enhanced Performance by Nano-Structure Control of Carbon Layers Coated-

Research Project

Project/Area Number 15350124
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic industrial materials
Research InstitutionAichi Institute of Technology

Principal Investigator

INAGAKI Michio  Aichi Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (20023054)

Co-Investigator(Kenkyū-buntansha) TOYODA Masahiro  Oita University, Faculty of Engineering, Professor, 工学部, 教授 (00290742)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥14,200,000 (Direct Cost: ¥14,200,000)
Fiscal Year 2005: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2004: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2003: ¥9,000,000 (Direct Cost: ¥9,000,000)
KeywordsPhotocatalysts / Anatase / Carbon coating / Carbon precursors / Nano-structure control / Reduced phases of titanium oxide / Metallic Sn fine particles / 酸化チタン還元相 / 炭素前躯体 / パラジウム金属微粒子 / ポリビニルアルコール / カーボン前駆体 / 還元相 / パラジウム微粒子
Research Abstract

The purposes of the present project were (1)establishment of the procedure to control adsorptivity of carbon layers coated on the particles of catalysts by modifying their nano-structure and (2)enhancement of catalyst performance and/or creation of new catalytic phases or new catalytic functions The following results were obtained.
1.Nano-structure control of carbon layers coated
Carbon layers formed on catalyst particles of oxides were proved to be rich in nano-sized pores from detailed analysis of pore structure on carbon isolated from carbon-coated MgO particles. Pore structure of nano-sized range depended strongly on the substrate oxides, such as α-Al_2O_3,γ-Al_2O_3,TiO_2,etc., and also on the carbon precursors, such as poly (vinyl alcohol), hydroxyl propyl cellulose, poly (ethylene terephthalate), etc. Through the hydrolysis of titanium isopropoxide in aqueous solution of poly (vinyl alcohol) followed by heat treatment at a high temperature, fine particles of carbon-coated TiO_2 par … More ticles were obtained with a high efficiency in usage of materials in preparation process and also with high performance as photocatalysts.
2.Enhancement of performance by interaction between coated carbon and substrate oxides
Carbon coated on oxide particles was found to interact with the substrate oxide to give reduced phases. Through carbon coating of TiO_2 particles, one of the reduced phases, Ti_4O_7,was formed. This reduced phase Ti_4O_7 was found to have photocatalytic activity.
Through the heat treatment of the mixtures of SnO_2,MgO and poly (vinyl alcohol) at a high temperature, carbon-coated Sn powders were successfully prepared. MgO particles was found to hinder the coagulation of metallic Sn just after the reduction of SnO_2 by the interaction with carbon at a high temperature, and also to leave open spaces neighboring fine particles of Sn metals after dissolution by diluted acid. Carbon-coated Sn thus prepared showed high performance as anode of lithium ion rechargeable batteries. Carbon coated on Sn could avoid the coagulation during charge-discharge cycles in batteries. Less

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (18 results)

All 2005 2004 2003 Other

All Journal Article (16 results) Publications (2 results)

  • [Journal Article] Photoactivity of carbon-coated anatase for decomposition of iminoctadine triacetate in water2005

    • Author(s)
      M.Toyoda, Y.Yoshikawa, T.Tsumura, M.Inagaki
    • Journal Title

      J. Photochem. Photobio. A : Chem. 171

      Pages: 167-171

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Carbon-coated anatase : the roles of the carbon layer for photocatalytic performance2005

    • Author(s)
      M.Inagaki, F.Kojin, B.Tryba, M.Toyoda
    • Journal Title

      Carbon 43

      Pages: 1652-1659

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Direct loading of fine particles of Pd on activated carbon from acidic aqueous solutiion and its NO conversion ability2005

    • Author(s)
      T.Okuni, Y.Sahashi, A.Satsuma, H.Konno, M.Inagaki
    • Journal Title

      炭素 2005

      Pages: 95-98

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Photoactivity of carbon-coated anatase for decomposition of iminoctadine triacetate in water2005

    • Author(s)
      M.Toyoda, Y.Yoshikawa, T.Tsumura, M.Inagaki
    • Journal Title

      J.Photochem.Photobio.A : Chem. 171

      Pages: 167-171

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Direct loading of fine particles of Pd on activated carbon from acidic aqueous solution and its NO conversion ability2005

    • Author(s)
      T.Okuni, Y.Sahashi, A.Satsuma, H.Konno, M.Inagaki
    • Journal Title

      炭素,2005 [No.217]

      Pages: 95-98

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Direct loading of fine particles of Pd on activated carbon from acidic aqueous solution and its NO conversion ability2005

    • Author(s)
      T.Okuni, Y.Sahashi, A.Satsuma, H.Konno, M.Inagaki'
    • Journal Title

      炭素 2005[No.217]

      Pages: 95-98

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Formation of Ti_4O_7 phase through interaction between coated carbon and TiO_22004

    • Author(s)
      T.Tsumura, Y.Hattori, K.Kaneko, M.Inagaki, M.Toyoda
    • Journal Title

      Desalination 169

      Pages: 269-275

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Pore structure of carbons coated on ceramic particles2004

    • Author(s)
      M.Inagaki, S.Kobayashi, F.Kojin, N.Tanaka, T.Morishita, B.Tryba
    • Journal Title

      Carbon 42

      Pages: 3153-3158

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Carbon coating of anatase-type TiO_2 through their precipitation in PVA aqueous solution2003

    • Author(s)
      M.Inagaki, Y.Hirose, T.Matsunaga, T.Tsumura, M.Toyoda
    • Journal Title

      Carbon 41

      Pages: 2619-2624

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Carbon coating of anatase-type TiO_2 through their precipitation in PVA aqueous solution,2003

    • Author(s)
      M.Inagaki, Y.Hirose, T.Matsunaga, T.Tsumura, M.Toyoda
    • Journal Title

      Carbon 41

      Pages: 2619-2624

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Preparation of carbon-coated Sn powders and their loading onto graphite flakes for lithium-ion secondary battery

    • Author(s)
      T.Morishita, M.Hirabayashi, Y.Nishioka, T.Okuni, N.Toda, M.Inagaki
    • Journal Title

      J. Power Sources (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Preparation of carbon-coated Sn powders and their loading onto graphite flakes for lithium-ion secondary battery

    • Author(s)
      T.Morishita, M.Hirabayashi, Y.Nishioka, T.Okuni, N.Tota, M.Inagaki
    • Journal Title

      J.Power Sources (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Preparation of carbon-coated Sn powders and their loading onto graphite flakes for lithium-ion secondary battery

    • Author(s)
      T, Morishita, M.Hirabayashi, Y.Nishioka, T.Okuni, N.Tota, M.Inagaki
    • Journal Title

      J.Power Sources 印刷中

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Carbon-coated anatase : the role of the carbon layer for photocatalytic performance

    • Author(s)
      M.Inagaki, F.Kojin, B.Tryba, M.Toyoda
    • Journal Title

      Carbon (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Photoactivity of carbon-coated anatase for decomposition of iminoctadine triacetate in water

    • Author(s)
      M.Toyoda, Y.Yoshikawa, T.Tsumura, M.Inagaki
    • Journal Title

      J.Photochem, Photobio.A.Chem. (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Direct loading of fine particles of Pd on activated carbon from acidic

    • Author(s)
      T.Okuni, Y.Sahashi, A.Satsuma, H.Konno, M.Inagaki
    • Journal Title

      炭素 (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Publications] M.Inagaki: "Carbon coating of anatase-type TiO_2 through their precipitation in PVA aqueous solution"Carbon. 41. 2619-2624 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Tsumura: "Formation of Ti_4O_7 Phase through Interaction between Coated Carbon and TiO_2"Desalination. 印刷中.

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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