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Pillar Density Control and Properties of Sintered Body of Oxide Pillared Fluorine Micas

Research Project

Project/Area Number 07651014
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 無機工業化学
Research InstitutionShinshu University

Principal Investigator

KITAJIMA Kunio  Shinshu University, Faculty of Engineering, Professor, 工学部, 教授 (30021009)

Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1996: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1995: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsPillared clay / Expandable mica / Intercalation / hydroxoaluminum ion / Titania sol / Pore size distribution / Sintered body / Specific surface area / アルミナ架橋体 / クロミア架橋体 / フッ素雲母 / 多核ヒドロキソ錯体 / ナノコンポジット / ピラ-密度制御
Research Abstract

In order to clarify the influence of interlayr cation species and layr charge upon formation and properties of oxide pillared fluorine micas, synthetic expandable fluorine micas having different interlayr cations and layr charges were allowed to react with hydroxoaluminum, hydroxochromium solutions and titania sol prepared by hydrolyzing titanium tetraisopropoxide (TTIP) with hydrochloric acid, respectively. The results were summarized as follows. 1)Intercalation of highly polymelyzed hydroxoaluminum ions resulted in the highest value of Al-content as well as the highest thermal durability for alumina pillared fluorine micas. 2)Alumina pillared fluorine micas were found to be sinterable, forming sintered bodies at 700゚C.3)Cation exchange selectivity of polycations for intercalation depended on layr charge of host crystals, resulting in larger average hydrolysis degree of interlayr compounds for lower layr-charged micas. 4)The relation between reation conditions and average hydrolysis rates of interlayr compounds were clarified. 5)More highly polymerized hydroxochromium ions were intercalated when reacted above 80゚C.6)The most appropriate reaction conditions of complex formation were decided to be [TTIP/HCl] ratio of 4, concentration of HCl used being 1 mol/dm^3 with reaction time of 180 min at 50゚C.7)Interlayr cation species of host micas had the profound influence on complex formation, resulting on different titania contents and surface areas of pillared micas in the order of K^+<Na^+<Li^+.8)Na_<x->-system was greatly influenced by layr charge, giving a maximum of titania content at x=0.6. This can be explained in terms of the counterbalancing between expandability and cation exchange capacity. 9)Thermal durability of titania pillared fluorine micas depended on titania content. 10)Part of interlayr titania was expelled from interlayr region onto crystal surfaces of mica to precipitate as anatase at higher temperatures.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 山口朋浩: "高重合度をもつ多核ヒドロキソアルミニウムイオンと膨潤性合成フッ素雲母との複合体生成" 日本化学会誌. 3. 307-310 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 松倉清治: "クロミア架橋フッ素雲母の生成と性質に及ぼす層電荷の影響" 日本化学会誌. 5. 441-448 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 國吉 太: "チタニア架橋フッ素雲母の生成と性質に及ぼす層間イオン種と層電荷の影響" 日本化学会誌. 7. 638-644 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Tomohiro YAMAGUCHI,Takayuki FUJITA,Nobuo TAKUSAGAWA,Kunio KITAJIMA: "Complex Formation of Highly Polymerized Hydroxoaluminum Polycations with Syntetic Fluorine Micas" Nippon Kagaku Kaishi. (3). 307-310 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Seiji MATSUKURA,Takayuki FUJITA,Nobuo TAKUSAGAWA,Kunio KITAJIMA: "Effects of Layr Charge on Complex Formation of Chromia Pillared Fluorine Micas" Nippon Kagaku Kaishi. (5). 441-448 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Futoshi KUNIYOSHI,Kunio KITAJIMA: "Effects of Interlayr Cation Species and Layr Charge on Formation and Properties of Titania Pillared Fluorine Micas" Nippon Kagaku Kaishi. (7). 638-644 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 山口朋浩: "高重合度をもつ多核ヒドロキソアルミニウムイオンと膨潤性合成フッ素雲母との複合体生成" 日本化学会誌. 3. 307-310 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 松倉清治: "クロミア架橋フッ素雲母の生成と性質に及ぼす層電荷の影響" 日本化学会誌. 5. 441-448 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 國吉太: "チタニア架橋フッ素雲母の生成と性質に及ぼす層間イオン種と層電荷の影響" 日本化学会誌. 7. 638-644 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 藤田隆之: "多核ヒドロキソクロム(III)水溶液中の化学種とクロミア架橋フッ素雲母の合成" 日本化学会誌. 1995. 277-284 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 山口朋浩: "高重合度をもつ多核ヒドロキソアルミニウムイオンと膨潤性フッ素雲母との複合体生成" 日本化学会誌. 1996. 307-310 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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