Studies on Chemisorption of Nitrogen on Molybdenum with the Field Emission Microscope

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  • Oguri Takeo
    Department of Physics, Faculty of Science Tokyo Metropolitan University
  • Kanomata Ichiro
    Department of Physics, Faculty of Science Tokyo Metropolitan University

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The microscopic studies of N2 on Mo have been made and compared with the results of the macroscopic studies. The non-dissociative chemisorption ε occurs on the crystal planes of average five nearest neighbours, and the ε-adatoms increase the work function of these planes as much as 0.5 eV. While, the dissociative chemisorption ζ occurs on the planes of four nearest neighbours, and the ζ-adatoms lower the work function slightly, 0∼0.5 eV. On the planes on which the ε and ζ-adsorptions take place contiguously, the values of the work function changes lie between 0 eV and +0.5 eV.<BR>The results for Mo are similar to those for W.

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