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DOI: 10.1039/A702808C (Paper) Reference Section for: J. Chem. Soc., Faraday Trans., 1997, 93, 2997-3004

Complex and non-periodic oscillations in the H2+O2 reaction

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Barry R. Johnson and Stephen K. Scott

Abstract

The gas-phase reaction between H2 and O2 is the prototype combustion reaction and one of the most studied chemical reactions. Previous work has reported the existence of sustained oscillatory ignition in open reactors driven primarily by chemical feedback (chain branching and self-inhibition) and of complex (mixed-mode) oscillations originating from the coupling of chemical and thermal feedback mechanisms. In this paper, additional complex responses are described for experiments with ‘fuel-rich’ mixtures at short residence times. Evidence for the existence of deterministic chaos in this system is presented. Almost all of the new complex behaviour can be modelled, at least semi-quantitatively, using the ‘minimal complex oscillator model’ comprising 12 elementary steps presented previously using kinetic data obtained from independent sources.

References

  1. B. R. Johnson, J. F. Griffiths and S. K. Scott, J. Chem. Soc., Faraday Trans., 1991, 87, 523 RSC.
  2. B. R. Johnson, S. K. Scott and A. S. Tomlin, J. Chem. Soc., Faraday Trans., 1991, 87, 2539 RSC.
  3. P. Gray, J. F. Griffiths, A. J. Pappin and S. K. Scott, in Complex Chemical Reaction Systems, ed. J. Warnatz and W. Jager, Springer, Berlin, 1987, p. 150 Search PubMed.
  4. D. L. Baulch, J. F. Griffiths, A. J. Pappin and A. F. Sykes, Combust. Flame, 1988, 73, 163 CrossRef CAS.
  5. D. L. Baulch, J. F. Griffiths, B. R. Johnson and R. Richter, Proc. R. Soc. London, Ser. A, 1990, 430, 151 CAS.
  6. K. Chinnick, C. Gibson, J. F. Griffiths and W. Kordylewksi, Proc. R. Soc. London, Ser. A, 1986, 405, 117 CAS.
  7. B. T. Johnson and S. K. Scott, J. Chem. Soc., Faraday Trans., 1990, 86, 3701 RSC.
  8. B. R. Johnson, J. F. Griffiths and S. K. Scott, Chaos, 1991, 1, 387 CrossRef.
  9. V. Petrov, S. K. Scott and K. Showalter, J. Chem. Phys., 1992, 97, 6191 CrossRef CAS.
  10. P. Berge, Y. Pomeau and C. Vidal, Order within chaos, Wiley, New York, 1984 Search PubMed.
  11. P. Gaspard and X.-J. Wang, J. Stat. Phys., 1987, 48, 151.
  12. J. F. Griffiths and A. F. Sykes, Proc. R. Soc. London, Ser. A, 1989, 422, 289 CAS.
  13. J. Maselko and H. L. Swinney, J. Chem. Phys., 1986, 85, 6430 CrossRef CAS.
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