The molecular adsorption of nitrogen dioxide on Pt(111) studied by temperature programmed desorption and vibrational spectroscopy

The adsorption of nitrogen dioxide (NO 2) on Pt(111) has been investigated using temperature programmed desorption (TPD) and high resolution electron energy loss spectroscopy (HREELS). At 100 K, NO 2 is adsorbed molecularly at all coverages to form a Pt(111) μ-N,O-nitrito surface complex. This puts...

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Published in:Surface science 1987-05, Vol.184 (1), p.57-74
Main Authors: Bartram, M.E., Windham, R.G., Koel, B.E.
Format: Article
Language:English
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Summary:The adsorption of nitrogen dioxide (NO 2) on Pt(111) has been investigated using temperature programmed desorption (TPD) and high resolution electron energy loss spectroscopy (HREELS). At 100 K, NO 2 is adsorbed molecularly at all coverages to form a Pt(111) μ-N,O-nitrito surface complex. This puts NO 2 in an upright bridge-bonded configuration with C s symmetry. Our assignment of this surface species is supported by the infrared spectrum of a μ-N,O-nitritoplatinate complex. The saturation coverage of chemisorbed NO 2 is about 0.5 monolayers (ML) at 100 K. At low coverages, θ NO 2
ISSN:0039-6028
1879-2758
DOI:10.1016/S0039-6028(87)80272-8