Shock Waves pp 615-620 | Cite as

Shock wave kinetics of Fe + NO based on Fe, O, and N atom measurements

  • A. Giesen
  • J. Herzler
  • P. Roth
Conference paper


The reaction of Fe atoms with NO was studied behind incident shock waves in the temperature range of 780 to 1020 K at pressures between 0.3 and 1.2 bar. Atomic-resonance-absorption spectroscopy (ARAS) was applied for the time-resolved measurement of Fe, N, and O atoms in gas mixtures containing Fe(CO)5 and NO, highly diluted in argon. The experiments showed an Fe-atom consumption without an associated O- or N-atom formation which can be explained by a recombination of Fe and NO:
$$ Fe + NO\mathop\to \limits^{k_1 } FeNO. $$
The rate coefficient k1 was obtained from pseudo-first-order analysis of the measured Fe-absorption profiles to be k1=108.99±0.3 exp(7020 ± 840 K/T) cm3/(mol s). It showed an inverse temperature dependency. Variation of the experimental pressure does not have any effect on the rate coefficient.


Shock Wave Shock Tube Rate Coefficient Incident Shock Incident Shock Wave 
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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • A. Giesen
    • 1
  • J. Herzler
    • 1
  • P. Roth
    • 1
  1. 1.Institut für Verbrennung und GasdynamikUniversität Duisburg-EssenDuisburgGermany

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