The effect of oxygen on time-dependent bifurcations in the Belousov-Zhabotinsky oscillating chemical reaction in a batch.
We have studied the effect of oxygen on the time-dependent bifurcations of transient oscillations in the Belousov-Zhabotinsky oscillating chemical reaction in a closed system. Experiments show that oscillations disappear through different bifurcations depending on the oxygen concentration in gas phase above the reaction solution. Oscillations disappear through the time-delayed Hopf bifurcation at low oxygen concentrations, whereas at high oxygen concentrations they disappear through the time-dependent SNIPER (saddle-node infinite period) bifurcation. We propose a kinetic scheme that describes the effects observed in experiments. Good agreement between the experimental data and simulations is obtained.
Kalishyn
Yevhen Yu
YY
L.V. Pysarzhevsky Institute of Physical Chemistry of National Academy of Sciences of Ukraine, pr. Nauky 31, 03039 Kyiv, Ukraine. z_kalishin@yahoo.com
Rachwalska
Małgorzata
M
Khavrus
Vyacheslav O
VO
Strizhak
Peter E
PE
D001966:Bromine / Q000737:chemistry; D004566:Electrodes; D007700:Kinetics; D010100:Oxygen / Q000737:chemistry*; D013995:Time
D010100:Oxygen; D001966:Bromine