Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
The Chemisorption of Nitric Oxide and Nitrogen on Rhenium
Teijiro Tamura
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1971 Volume 44 Issue 3 Pages 590-595


The chemisorption of nitric oxide and nitrogen on a polycrystalline rhenium filament was studied using flash-desorption mass spectroscopy. For the chemisorption of nitric oxide, the initial sticking probability was found to be close to unity, with a saturation coverage of 5.2×1014 molecules/cm2 at room temperature. Nitric oxide adsorbs nondissociatively, and dissociation occurs at an elevated temperature. The rate of the desorption of nitrogen from the nitric oxide layer is roughly proportional to θ2. The majority of the oxygen in the nitric oxide layer was presumed to be liberated as rhenium oxide. The nitrogen adsorption was investigated in order to compare it with the nitric oxide adsorption. The saturation coverage and the initial sticking probability were 1.08×1014 molecules/cm2 and 0.003 respectively.

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