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Molecular Design of Organic-Inorganic Composite Materials for Catalysis

Research Project

Project/Area Number 02650592
Research Category

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

Allocation TypeSingle-year Grants
Research Field 工業物理化学・複合材料
Research InstitutionJyouchi Daigaku (Sophia University)

Principal Investigator

SEGAWA Kohichi  Sophia University, Faculty of Science & Technology, Assistant Professor, 理工学部, 助教授 (60053675)

Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1991: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1990: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsZirconium Phosphonate / Zirconium Phosphate / Layered Compound / Solid Acids / ^<31>P-MASNMR / ^<13>C-CP-MASNMR / CPーMASNMR / 複合化 / 同体酸触媒 / ^<31>PーMASNMR / ^<13>ClCPーMASNMR / 固体MASNMR / エステル化反応 / 形状選択性
Research Abstract

Zirconium phosphonates are solid materials typically synthesized in amorphous forms under aqueou conditions by the reaction of a soluble salt of a tetravalent metal and a phosphonic acid or an organophosphori acid :
However, it is possible to synthesize many of them as crystalline compounds. Preparation and characterization of two-dimensional zirconium phosphonate derivatives have been investigated. The potential applications of crystalline zirconium phosphonates have significant recent interest. Depending on the R group, different applications for these materials in the field of chromatographic separation, photochemistry, fuel cell, and catalysis are expected. In the case of zirconium phosphates, with the general formula. Zr(O_3POH)_2・nH_2O, the most extensively investigated crystalline zirconium, phosphate is an a layered acid salt, alpha-Zr(O_3POH)_2-H_2O crystallizes in the monoclinic system, as assigned by Troup and Clearfield from their single crystal work. For the zirconium phosp … More honates, however, the twodimensional tetravalent metal plane has a structure essentially similar to the zirconium phosphate structure ; substituted for hydroxyl groups are the desired organic functional groups, oriented away from the basal surfaces in a bilayered fashion in the interlayer region. Therefore, zirconium phosphonate materials can act as a series of modified surfaces, and become accessible for reactant molecules of catalysis.
Two composite zirconium phosphonates in single crystal phase have also been investigated and characterized by XRD, ^<13>C-, and ^<31>P-MASNMR. These compounds are lamellar structures comprising zirconium phosphates or organophosphonates. Each layer consists of planes of zirconium bridged through phosphonate groups which altemate above and below the Zr atom planes, oriented away from the basal surfaces in a bilayered fashion in the interlayer region. The catalytic performance over zirconium phosphonates is evaluated by hydrolysis of ethylacetate or by esterification of acefic acid. When the composite zirconium phosphonate is composed with an acidic function and with a hydrophobic function in single crystal phase, the catalytic activity showed a higher activity without swelling of the catalyst in the reaction media. The composite materials become accessible, to any reactant molecule and improve hydrophobicity. Less

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Sagawa, K.,Sugiyama,A.,and Kurusu,Y.: "Molecular Design of Two-Dimensional Zirconium Phosphonate Catalysts" Studies in Surface Sceince and Catalyst. 60. 73-80 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Sagawa,K.,Kihara.N.,and Yamamoto,H.: "Catalyst Design of Two-Dimensional Zirconium Phosphonates" Journal of Molocular Catalysis. 0-10 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Sagawa,K.,Kihara.N.,and Yamamoto,H.: "Molecular Design of Layered Zirconium Phosphonate Catalysts" Proceedings of 9th Inter national Zeolite Conference.0-8 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Kurusu, Y., and Kinoshita, M.: " "Catalytic Activities and Selectivities of Crystalline Zr(HPO_4)_2"" Studies in Surface Science and Catalysis. 20. 183-190 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Kurusu, Y., Nakajima, Y., and Kinoshita, M.: " "Characterization of Crystalline Zirconium Phosphates and Their Isomerization Activities"" Journal of Catalysis. 94. 491-500 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., and Kinoshita, M.: " "Structure and Catalytic Activities of Zirconium Phosphates (Review)"" Shokubai. 27. 244-250 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Nakajima, Y., Nakata, S., Asaoka, S., and Takahashi, H.: " " ^<13>P-MASNMR Spectroscopic Studies with Zirconium Phosphate Catalysts"" Journal of Catalysis. 101. 81-89 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Kinoshita, M., and Nakata, S.: " "Catalysis by Crystalline Zirconium Phosphates (Review)"" Hyomen. 24. 1-14 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Nakata, S., and Asaoka, S.: " "Structure and Surface Chemistry of Crystalline Zirconium Phosphate Catalysts"" Materials Chemistry and Physics.17. 181-20 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Sakurai, K., Kurusu, Y., and Segawa, K.: " "Structure and Surface Chemistry of Two-Dimensional Layered Phosphate Catalysts"" Proceedings of the MRS International Meeting on Advanced Materials" Materials Research Society, Pittsburgh,. 2. 191-196 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Sugiyama, A., and Kurusu, Y.: " "Molecular Design of Two-dimensional Zirconium Phosphonate Catalysts"" Studies in Surface Science and Catalysis. 60. 73-80 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Kihara, N., and Yamamoto, H.: " "Catalyst Design of Two-Dimensional Zirconium Phosphonates"" Journal of Molecular Catalysis.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa, K., Kihara, N., and Yamamoto, H.: " "Molecular Design of Layered Zirconium Phosphonate Catalysts"" Proceedings of 9th International Zeolite Conference.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Segawa,K.,Sugiyama,A.,and Kurusu,Y.,: "Molecular Design of TwoーDimensional Zirconium Phosphonate Catalysts" Studies in Surface Science and Catalysis. 60. 73-80 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Segawa,K.,Kihara,N.,and Yamamoto,H.,: "Catalyst Design of TwoーDimensional Zirconium Phosphonates" Journal of Molecular Catalysis 8月号. 0-10 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] Sewgawa,K.,Kihara,N.,and Yamamoto.,H.,: "Molecular Design of Layered Zirconium Phosphonate Catalysts" Proceedings of 9th International Zeolite Conference. 0-8 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] Segawa,K.: "Molecular Design of TwoーDimensional Zirconium Phosphonate Catalysts." Proceedings of CMPC(Chemistry of MicroーPorous Crystals).

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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