New Oriented-Molecular-Beam Machine for Surface Stereochemistry with X-ray Photoemission Spectroscopy
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概要
- 論文の詳細を見る
The stereochemical control of surface reactions is one of the ultimate goals of surface scientists. An oriented-molecular-beam technique based on the Stark effect of a molecule in an inhomogeneous hexapole electrostatic field is a potential tool for achieving this goal. This technique allows us to select a specific rotational quantum state and also an orientation of a reagent molecule. We have designed, built, and tuned a new UHV-compatible oriented-molecular-beam machine for the elucidation of surface chemical reactions and their related surface modifications. This apparatus is equipped with the components for X-ray photoemission spectroscopy (XPS) in order to detect the surface-reaction products. In the dissociative adsorption of NO on a Si{111} surface, we found a steric effect in the reactivity by monitoring the products on the surface with the new machine. The N-end collision is more reactive than the O-end collision at an incident energy of 58 meV. To our knowledge, this is the first measurement of the steric effect appearing in the reaction products on a surface.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-05-25
著者
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Kasai Toshio
Department Of Cardiology National Hospital Organization Nagano Hospital
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Teraoka Yuden
Synchrotron Radiation Research Cener Japan Atomic Energy Research Institute(jaeri)
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Okada Michio
Department Of Chemistry Graduate School Of Sciences Osaka University
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Hashinokuchi Michihiro
Department Of Chemistry Graduate School Of Science Osaka University
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Moritani Kousuke
Synchrotron Radiation Research Center Japan Atomic Energy Research Institute
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Teraoka Yuden
Synchrotron Radiation Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
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Moritani Kousuke
Synchrotron Radiation Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
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Kasai Toshio
Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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Hashinokuchi Michihiro
Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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