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Preparation and Characterization of Ceramic Oxides by Wet Method (Basic Research)

Research Project

Project/Area Number 01470073
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 無機工業化学
Research InstitutionKyoto University

Principal Investigator

YAMAMOTO Naoichi  Kyoto Univ., Dep. of Liberal Arts and Sci., Professor, 教養部, 教授 (70027704)

Co-Investigator(Kenkyū-buntansha) TAMADA Osamu  Kyoto Univ., Dep. of Liberal Arts and Sci., Associate Professor, 教養部, 助教授 (40026828)
OKA Yoshio  Kyoto Univ., Dep. of Liberal Arts and Sci., Associate Professor, 教養部, 助教授 (10152282)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1990: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1989: ¥4,500,000 (Direct Cost: ¥4,500,000)
KeywordsHollandite / Single crystal / Vanadium dioxide / Layer structure / Lietvelt method / Sillenite / バナジウム層状化合物 / 水熱合成 / アルカリ含有バナジウム化合物 / ホ-ランタイト型二酸化マンガン / トンネル構造 / 層状バナジュウム酸化物 / 準安定二酸化バナジウム / シレナイト相
Research Abstract

1. Mn-O-OH system ; by using test-tube type autoclave, more extensive study was carried out. The single crystal of hollandite type MnO_2 was newly synthesized and chemical composition was given as Rb_<1.5> Mn_8 O_6. Crystal structure analysis showed that Rb ion of the material lies in a tunnel of the crystal structure of 2x2 size.
2. V-O-OH system ; by using Moley type autoclave, formation diagram of V-O-OH system was studied. A lot of metastable previously-unknown compounds were found and some of them were isolated to carry out to determine the crystal structures by using Riettvelt Xーray analytical method. Moreover, new comer of hydrated layer-structured vanadium oxides and their derivatives which contained alkaline metal ions were synthesized. Transformation properties between hydrated layer-structured vanadium oxides, which have the same mother lattice of vanadium-oxygen Pyramid structure, but were in different amount of hydrosis, were studied.
3. Bi-Fe-O-OH system ; Fe-sillenite crystal powder was precipitated directly from the aqueous solution containing each element ions of Bi, Fe, OH^-. It was found that particle shape of a crystal could be controlled by reaction conditions, such as reaction temperature, alkaline concentration and so on. Behavior of the sintering process was also studied.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Yoshio Oka: "Phase Transition and Electrical Properties of VO_2(A)" 日本セラミック協会学術論文誌. 97. 1134-1137 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoshio Oka: "Formation and Phase transions of Hydrated Vanadium Oxides with Layered Structures" 日本セラミック協会学術論文誌. 97. 1441-1445 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoshio Oka: "Powder Xーray Crystal Structure of VO_2(A)" J.Solid State Chem.86. 116-124 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Naoichi Yamamoto: "Single crystal growth and structre determination of Rb_<1.5>Mn_8O_<16> hollandite" Min.J.15. 41-49 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoshio Oka: "Structure Determination of H_2V_3O_8 by Powder Xーray Diffraction" J.Solid State Chem.89. 372-377 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoshio Oka: "Hydrothermal Synthesis of AlKaliーContaining Hydrated Vanadium Oxides with Layered Structures" 日本セラミック協会学術論文誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Y. Oka, Yamamoto, T. Ohtani and T. Takada: "Phase Transition and Electrical Properties of VO_2 (A)" J. of the Ceramic Soc. Jpn.97. 1134-1137 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Y. Oka, N. Yamamoto, T. Ohtani and T. Takada: "Formation and Phase Transitions of Hydrated Vanadium Oxides with Layered Structures" J. of the Ceramic Soc. Jpn.97. 1441-1445 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Y. Oka, N. Yamamoto and T. Yao: "Powder X-ray Crystal Structure of VO_2 (A)" J. Solid State Chem.86. 116-124 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] N. Yamamoto, Y. Oka and O. Tamada: "Single crystal growth and structure determination of Rb_<1.5>Mn_8O_<16> hollandite" Min. J.15. 41-49 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Y. Oka, T. Yao and N. Yamamoto: "Structure Determination of H_2V_3O_8 by powder X-ray Diffraction" J. Solid State Chem.89. 372-377 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Y. Oka, T. Yao and N. Yamamoto: "Hydrothermal Synthesis of Alkali-Containing Hydrated Vanadium Oxides with Layered Structures" J. of the Ceramic Soc. Jpn.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoshio Oka: "Powder Xーray Crystal Structure of VO_2(A)" J.Solid State Chem.86. 116-124 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Naoichi Yamamoto: "Single crystal growth and structure determination of Rb_<1.5>Mn_8O_<16> hollandite" Min.J.15. 41-49 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Yoshio Oka: "Structure Determination of H_2V_3O_8 by Powder Xーray Deffraction" J.Solid State Chem.89. 372-377 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Yoshio Oka: "Hydrothermal Synthesis of AlkaliーContaining Hydrated Vanadium Oxides with Layered Structure" 日本セラミック協会学術論文誌.

    • Related Report
      1990 Annual Research Report
  • [Publications] Naoichi Yamamoto: "Single crystal growth and structure doterminations of Rb_<1.5>Mn_8O_<16> hollandite" Min.J.

    • Related Report
      1989 Annual Research Report
  • [Publications] Yoshio Oka: "Powder X-ray Crystal Structure of VO_2(A)" J. Solid State Chem.

    • Related Report
      1989 Annual Research Report
  • [Publications] Yoshio Oka: "Formation and Phase Transtions of Hydrated Vanadium Oxides with Layered Structures" 日本セラミック協会学術論文誌. 97. 1441-1445 (1989)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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