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Catalytic properties of intermetallic compounds and their application to high performance catalysts

Research Project

Project/Area Number 12650777
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 触媒・化学プロセス
Research InstitutionTokyo Institute of Technology

Principal Investigator

KOMATSU Takayuki  Tokyo Institute of Technology, Graduate School of Science and Engineering, Associate Professor, 大学院・理工学研究科, 助教授 (40186797)

Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2001: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2000: ¥2,300,000 (Direct Cost: ¥2,300,000)
Keywordsintermetallic compound / catalyst / platinum / nickel / CVD / partial hydrogenation / dehydrogenation / fine particle / パラジウム / 鉄 / フェロセン / アセトキシル化 / シクロヘキサン脱水素 / スズ / アセチレン水素化 / H_2-D_2平衡化 / XPS / XANES / TiPt_3
Research Abstract

The catalytic properties of intermetallic compounds and their application to various reactions as specific catalysts were investigated.
Intermetallic compounds with the combination of transition and typical elements and of two transition elements were prepared by an arc-melting technique. They were crushed in air and reduced by hydrogen at 600-900℃ before characterization and catalytic reactions. XRD, XPS and EDX studies revealed that they were homogeneous and single-phase intermetallic compounds in the bulk and on the surface. Ni_3Sn and Pt_3Ge gave much lower catalytic activity than Ni and Pt for H_2-D_2 equilibration but much higher selectivity for partial hydrogenation of acetylene into ethylene and 1,3-butadiene into butenes, respectively. TiPt__3 gave higher activity than Pt for H_2-D_2 equilibration and ethylene hydrogenation.
Fine particles of those intermetallic compounds were prepared by chemical vapor deposition (CVD) or successive impregnation techniques. In CVD, the vapor of … More Sn(CH_3)_4, Ge(acac)_2Cl_2, Ti(C_5H_5)_2Cl_2, etc. was supplied with hydrogen onto Ni/silica, Pt/H-ZSM-5, Ru/silica, etc. to deposit the second element onto the particle of first element. XRD, XPS and XAFS studies revealed that the particles were single-phase intermetallic compounds with diameters of 4-20 nm. The fine particles showed three magnitude higher activity per weight of compounds than the unsupported bulk compounds. Moreover, the selectivity of these compounds was totally different from that of supported pure metals. Ni_3Sn/silica gave benzene in the reaction of cyclohexane, while Ni/silica gave almost exclusively methane. Pd_3Bi/silica and Pd_3Pb/silica gave benzyl acetate in the oxidative acetoxylation of toluene with much higher yields than Pd/silica. Pt_3Ge/H-ZSM-5 accelerated the formation of aromatic hydrocarbons in the aromatization of butane without preferential formation of methane through the hydrogenolysis on Pt/H-ZSM-5. RuTi/silica exhibited high yield to higher hydrocarbons in Fischer-Tropsch synthesis than Ru/silica. Less

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Ayumu Onda: "Characterization and catalytic properties of Ni-Sn intermetallic compounds in acetyleue hydrogenation"Physical Chemistry Chemical Physics. 2. 2999-3005 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takayuki Komatsu: "Aromatization of butane on Pt-Ge intermetallic compounds supported on HZSM-5"Applied Catalysis A, General. 194-195. 333-339 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takayuki Komatsu: "Ti-Pt intermetallic compound catalysis more active than Pt for hydrogen dissociation and ethylene hydrogenation"Chemical Communications. No 12. 1080-1081 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ayumu Onda: "Preparation and catalytic properties of single-phase Ni-Su intermetallic compound particles by CVD of Su(CH_3)_4 onto Ni/silica"Journal of Catalysis. 201. 13-21 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ayumu Onda: "Characterization and catalytic properties of Ni-Sn intermetallic compounds in acetylene hydrogenation"Physical Chemistry Chemical Physics. 2. 2999-3005 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takayuki Komatsu: "Aromatization of butane on Pt-Ge inermetallic compounds supported on HZSM-5"Applied Catalysis A, General. 194-195. 333-339 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takayuki Komatsu: "Ti-Pt intermetallic compoun catalysts more active than Pt for hydrogen dissociation and ethylene hydrogenation"Chemical communications. No.12. 1080-1081 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ayumu Onda: "Preparation and catalytic properties of single-phase Ni-Sn intermetallic compound particles by CVD of Sn(CH_3)_4 onto Ni/silica"Journal of Catalysis. 201. 13-21 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takayuki Komatsu: "Ti-Pt intermetallic compound catalysis more active than Pt for hydrogen dissociation and ethylene hydrogenation"Chemical Communications. 12. 1080-1081 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ayumu Onda: "Preparation and catalytic properties of single-phase Ni-Sn intermetallic compound particles by CVD of Sn(CH_3)_4 onto Ni/silica"Journal of catalysis. 201. 13-21 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ayumu Onda: "Characterization and catalytic properties of Ni-Sn intermetallic compounds in acetylene hydrogenation"Physical Chemistry Chemical Physics. 2. 2999-3005 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Takayuki Komatsu: "Aromatization of butane on Pt-Ge intermetallic compounds supported on HZSM-5"Applied Catalysis A,General. 194-195. 333-339 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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