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2001 Fiscal Year Final Research Report Summary

Manipulation of surface reaction using supersonic molecular beam

Research Project

Project/Area Number 12440156
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionTohoku University

Principal Investigator

KUSUNOKI Isao  Tohoku University, Institute of Multidisciplinary Research for Advanced Materials, Professor, 多元物質科学研究所, 教授 (30025390)

Co-Investigator(Kenkyū-buntansha) TAKAOKA Tsuyoshi  Tohoku University, Institute of Multidisciplinary Research for Advanced Materials, Research Associate, 多元物質科学研究所, 助手 (90261479)
Project Period (FY) 2000 – 2001
Keywordssurface reaction / infrared spectroscopy / supersonic molecular beam / Nickel / translational energy / carbon monoxide / hydrogen / Xe
Research Abstract

The reaction of gas molecules on solid surfaces is very important as it is related with catalysis and production of semiconductor devices. The objects of our research are the elucidation of the relation between the reactions on surfaces and the energy of molecules colliding the surface, and the manipulation of surface reactions with the control of the energy of molecules. We observed the effects of translational energy of gas molecules on the reactions of adsorbates.
We used supersonic molecular beam apparatus to control the translational energy of gas molecules, Fourier transformed infrared spectrometer to detect the surface reaction, mass spectrometer to detect the desorbed molecules from the surface. The Ni(100) surface exposed to hydrogen gas and carbon monoxide gas is irradiated with energy controlled Xe atoms. When Xe energy is 0.5 eV, FTIR spectra of the CO/H/Ni(100) surface is not changed. However, when Xe energy is 1.0 eV, adsorption state of CO of the CO/H/Ni(100) changes and a part of CO molecules are desorbed from the surface. This phenomena is explained as the change of adsorption site of CO induced by Xe collision. We could control the desorption reaction which is the most elementary step in surface reactions by controlling the energy of molecules. We would like to develop the control of surface reaction by using energy controlled gas molecules, based on the present results.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] T.Takaoka: "Collision-Induced-Desorption of N_2 on Ni(100) studied with Fourier transform infrared spectroscopy"Surface Science. 454. 218-221 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Kusunoki: "Nitridation of a diamond film using 300-700 eV N_<2^+> ion beams"Diamond and Related Materials. 9. 698-702 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Kusunoki: "XPS study of nitridation of diamond and graphite with a nitrogen ion beam"Surface Science. 492. 315-328 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] IlKusunoki: "AFM and XPS studies of a homoexpitaxial diamond(001) surface nitrided using 500 eV N_<2^+> ion beam"Diamond and Related Materials. 10. 1676-1680 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 楠 勲: "分子線を用いて表面を探る-吸着・脱離・反応のメカニズム-"真空. (印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Takaoka: "Collision-Induced-Desorption of N_2 on Ni(100) studied with Fourier transform infrared spectroscopy."Surface Science. 454. 218-221 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I. Kusunoki: "Nitridation of a diamond film using 300-700 eV N_2^+ ion beams."Diamond and Related Materials. 9. 698-702 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I. Kusunoki: "XPS study of nitridation of diamondand and graphite with a nitrogen ion beam."Surface Science. 492. 318-328 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I. Kusunoki: "AFM and XPS studies of a homoexpitaxial diamond(001) surface nitrided using 500 eV N_2^+ ion beam."Diamond and Related Materials. 10. 1676-1680 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I. Kusunoki: "Probing surface using supersonic molecular beam."Journal of the vacuum society of Japan. (in printing).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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