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A Development of Laboratory EXAFS Spectrometer

Research Project

Project/Area Number 61890012
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field 広領域
Research InstitutionInstitute for Molecular Science, Okazaki National Research Institute

Principal Investigator

UDAGAWA Yasuo  Institute for Molecuare Science, 分子科学研究所, 助教授 (00004458)

Co-Investigator(Kenkyū-buntansha) TOHJI Kazuyuki  Institute for Molecular Scien, 分子科学研究所, 助手 (10175474)
Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1987: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1986: ¥6,000,000 (Direct Cost: ¥6,000,000)
Keywordsx-ray absorption / EXAFS / 触媒 / 二結晶分光器
Research Abstract

In the recent years EXAFS (Extended X-ray Absdorption Fine Structure) has been widely utilized for the structural studies of non-crystalline metarials ranging from catalysts to biological molecules. To a number of inverstigaters, however, it si impossible to make use of EXAFS, because synchtotron raciation source was necessary. Under these circumstances it was atterpted to construct a laboratory EXAFS spectrometer making use of conbentional x-ray sources by this Grant.
The features of the system constructed is as follow;
1. a use of two curved Johansson type curved and ent monochromator crystals 2. a feedback system to make x-ray intensity constant
3. simulataneous measurement of %i_0(incident intensity) and I(transmitted intensity) As a result EXAFA spectra of very high quality can be obtained from Ti to Ag (about 6 kev - 25 kev) in about 10 hours. By making use of this spectrometer catalyst structure of silica supported Mo catalyst and laumina supported Ru catalyst have been investigated in the past year.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 田路和幸,宇田川康夫,川崎勉,三重野公利: Review of Scientific Instruments.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 角田範義,田路和幸,宇田川康夫: Journal of Physical Chimstry.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 水嶋生智,田路和幸,宇田川康夫: Journal of American Chemical Society.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Kazuyuki Tohji, Yasuo Udagawa, Tsutomu Kawasaki, and Kimitoshi Mieno: "A double crytal spectrometer for laboratory EXAFS spectroscopy" Review of Scientific Instruent. 59. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Notiyoshi Kakuta, Kazuyuki Tohji, and Yasuo Udagawa: "Chatacterizxation of silica supported Mo catalyst by EXAFS and Raman Scattering" Journal of Physical Chemistry. 92. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Takanori Mizushima, Kazuyuki Tohji, and Yayuo Udagawa: "An EXAFS study on the morphology cahnge of Ru cluster by Co adsorption" Jouranl of Ametican Chemical Society.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary

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Published: 1987-03-31   Modified: 2016-04-21  

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