The NO-H2 reaction over Pt(100) oscillatory behaviour of activity and selectivity |
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| Authors: | J. Siera P. Cobden K. Tanaka B. E. Nieuwenhuys |
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| Affiliation: | (1) Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands;(2) The Institute for Solid State Physics, The University of Tokyo, 7-22-1 Roppong, Minato-Ku, 106 Tokyo, Japan |
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| Abstract: | The NO-H2 reaction has been studied over a Pt(100) single crystal surface as a function of temperature and partial pressures of the reactants. The activity as well as the selectivity, shows oscillatory behaviour under isothermal conditions from 420 K to 520 K. The oscillations observed for the formation rates of N2 and NH3 are out of phase with those found for the formation rate of N2O. These observations are in line with recently proposed mechanisms for the formation of N2, NH3 and N2O. |
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| Keywords: | NO-H2 reaction oscillating selectivities Pt(100) |
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