RESONANT PHOTOEMISSION OFN2OONIr(110)

S. A. C. Carabineiro, F. M. F de Groot (), L. Kjeldgaard, J.-E. Rubensson and B. E. Nieuwenhuys
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S. A. C. Carabineiro: Leiden University, Surface Science and Heterogeneous Catalysis Group, Leiden, Institute of Chemistry, Einsteinweg 55, 2333 CC Leiden, The Netherlands
F. M. F de Groot: Utrecht University, Department of Inorganic Chemistry and Catalysis, Sorbonnelaan 16, 3584 CA Utrecht, The Netherlands
L. Kjeldgaard: MAX-lab, Lund University, P.O. Box 118 22100 Lund, Sweden
J.-E. Rubensson: Uppsala University, Department of Physics, Box 530, 75121 Uppsala, Sweden
B. E. Nieuwenhuys: Leiden University, Surface Science and Heterogeneous Catalysis Group, Leiden, Institute of Chemistry, Einsteinweg 55, 2333 CC Leiden, The Netherlands

Surface Review and Letters (SRL), 2004, vol. 11, issue 04n05, 385-389

Abstract: The adsorption ofN2OonIr(110)was investigated with high-resolution resonant photoemission at 135 K. The results obtained show evidence of molecular adsorption ofN2O, along with some dissociation. It is found that the nitrogen photoemission spectra measured at the terminal and central nitrogen energy positions of theN2O/Ir(110)system are equivalent to those ofN2Oin the gas phase. In contrast, the oxygen spectrum shows little resemblance to the gas phase oxygen spectrum ofN2O. In the nitrogen resonant photoemission spectra one can only discover resonant behavior with constant binding energy peaks. In contrast, the oxygen resonant photoemission spectra shows dominantly Auger behavior with peaks at constant kinetic energies. Both observations reveal that the oxygen is bonded to theIrsurface. A systematic study as a function of coverage and temperature and a comparison with other surfaces differing in structure and composition is needed to understand the variations in the adsorption behavior ofN2Oon metal surfaces.

Keywords: X-ray absorption spectroscopy; x-ray photoelectron spectroscopy; nitrogen oxides; nitrogen molecule; adsorption; thermal desorption; iridium; stepped single crystal surfaces (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1142/S0218625X04006323

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