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Reduction of metal oxides by mechanical alloying method

Research Project

Project/Area Number 09555188
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Inorganic materials/Physical properties
Research InstitutionThe University of Tokyo

Principal Investigator

TOKUMITSU Kazuto  School of engineering, Tokyo university, Research associate, 大学院・工学系研究科, 助手 (20180143)

Co-Investigator(Kenkyū-buntansha) MIYAZAWA Kunichi  School of engineering, Tokyo university, Lecturer, 大学院・工学系研究科, 講師 (60182010)
MOTITA Kazuki  School of engineering, Tokyo university, Associate professor, 大学院・工学系研究科, 助教授 (00210170)
NASU Toshio  Faculty of education, Yamagata university, Professor, 教育学部, 教授 (00083436)
INO Hiromitsu  Faculty of engineering, Hosei university, Professor, ・工学部, 教授 (20029466)
SUZUKI Kenji  Advance material research Institute, Head, 所長(研究職) (10005861)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥10,500,000 (Direct Cost: ¥10,500,000)
Fiscal Year 1999: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1998: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1997: ¥6,900,000 (Direct Cost: ¥6,900,000)
KeywordsMechanical Alloying / Non-equilibrium reaction / Solid state reaction / Reduction / Iron oxide / Copper oxide / Silver oxide / ボールミル / 還元
Research Abstract

The authors studied the reduction of metal oxides at room temperature and at room pressure by mechanical alloying method. The followings were examined from 1997 to 2000.
from 1997 to 1998 : (1) reduction of silver oxide and copper oxide with carbon
(2) preparation of Mossbauer spectroscopy
(3) manufacturing of mechanochemical reactor
from 1998 to 1999 : (4) reduction of iron with metallic elements
(5) preparation of ceramic reaction system
(6) manufacturing of shaker-type milling machine
from 1999 to 2000 : (7) reduction of iron oxides with hydrogen and methane gas
(8) evaluation of the stability of-iron oxides
(9) preparation of α-Fe/magnetite complex particle and cell-structured magnetite particle.
It was demonstrated that metal oxides were reduced without thermal activation. In particular, several nanometer and super-paramagnetic α-Fe cluster was discovered in reduction of iron oxide, which lead that the mechanism of reduction was able to be studied at atomic level and also the new technique to prepare atom clusters was proposed. And α-Fe/magnetite complex particle and cell-structured magnetite particle were discovered for the first time in the world which was used the catalysis for transformer of alcohol.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] T. Nasu and K. Tokumitsu: "Reduction of iron oxide by ball-milling with hydrogen gas flow"J. Metastable & Nano-crystalline Materials.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Tokumitsu and T. Nasu: "Synthesis of nano-structured Fe/Fe<@D3@>D2O<@D4@>D2 complex particle by thermal decomposition of wustite"J. Metastable & Nano-crystalline Materials.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K.Tokumitsu and T.Nasu: "水素ガス還流メカニカルアロイング法によるヘマタイトからの超微細結晶粒鉄の生成"固体の反応性. 10. 167-170 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Nasu and K. Tokumitsu: "Solid state reduction of iron oxide by ball-milling"J. Metastable & Nano-crystalline Materials. 2. 185-190 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Tokumitsu and T. Nasu: "Atomic distribution change of Fe-cu solid solution pripared by mechanical alloying"J. Metastable & Nano-crystalline Materials. 2. 405-410 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Nasu and K. Tokumitsu: "Deoxidation of iron oxide by ball-milling"Materials Science Forum. 269. 181-186 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Nasu and K. Tokumitsu: "Reduction of iron oxide by ball-milling with hydrogen gas flow"J. Meta. & Nano-cryst. Materials.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Tokumitsu and T. Nasu: "Synthesis of nano-structured Fe/FeィイD23ィエD2OィイD24ィエD2 complex particle by thermal decomposition of wustite"J. Meta. & Nano-cryst. Materials.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Tokumitsu and T. Nasu: "Formation of nano-crystalline iron by ball-milling with hydrogen gas flow"Kotaino-hannousei. 10 (Japanese). 167-170 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Nasu and K. Tokumitsu: "Solid state reduction of iron oxide by ball-milling"J. Meta. & Nano-cryst. Mater.. 2. 185-190 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Tokumitsu: "Atomic distribution of Fe-Cu solid solution prepared by mechanical alloying"J. Meta. & Nano-cryst. Mater.. 2. 405-410 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Nasu and K. Tokumitsu: "Deoxidation of iron oxide by ball-milling"Mater. Science Forum. 269. 181-186 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Nasu and K.Tokumitsu: "Reduction of iron oxide by ball-milling with hydrogen gas flow"J.Metastable & Nano-crystalline Materials.

    • Related Report
      1999 Annual Research Report
  • [Publications] K.Tokumitsu and T.Nasu: "Synthesis of nano-structured Fe/Fe_3O_4 complex particle by thermal decomposition of wustite"J.Metastable & Nano-crystalline Materials.

    • Related Report
      1999 Annual Research Report
  • [Publications] K.Tokumitsu and T.Nasu: "水素ガス還流メカニカルアロイング法によるヘマタイトからの超微細結晶粒鉄の生成"固体の反応性. 10. 167-170 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Nasu and K.Tokumitsu: "Solid state reduction of iron oxide by ball-milling"J.Metastable & Nano-crystalline Materials. 2. 185-190 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] K.Tokumitsu: "Atomic distribution change of Fe-cu solid solution prepared by mechanical alloying"J.Metastable & Nano-crystalline Materials. 2. 405-410 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Nasu and K.Tokumitsu: "Deoxidation of iron oxide by ball-milling"Materials Science Forum. 269. 181-186 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Nasu and K.Tokumitsu: "Solid State Reduction of Iron-Oxide by Ball-Milling" Materials Science Forum.

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Tokumitsu: "Magnetic Properties of Fe-Cu Solid Solutions Prepared by Mechanical Alloying" Materials Science Forum.

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Tokumitsu: "Atomic Distribution Change in Fe-Cu Solid Solutions Prepared by Mechanical Alloying" Materials Science Forum.

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Tokumitsu and T.Nasu: "Deoxidation of Iron Oxides by Ball-Milling" Materials Science Forum. 269. 181-186 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Tokumitsu: "Phase Stabilities and Magnetic Properties of Fe-Cu Solid Solutions prepared by Mechanical Alloying" Materials Science Forum. 269. 467-472 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Tokumitsu and M Nasu: "Deoxidation of iron oxide by ball-milling" Materials Science Forum.

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Tokumitsu: "Reduction of metal oxides by mechanical alloying method" Solid State Ionics. 101. 25-31 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Tokumitsu: "Synthesis of metastable Fe_3C,Co_3C and Ni_3C by mechanical alloying" Materials Science Forum. 235. 127-132 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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