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Citation: LIU Hai-Miao, XIONG Xiao-Gen, ZHAO Chang-Chun, ZHENG Ju-Hua, GAO Qing-Yu. Complex Oscillations in the Oxidation of Sulfide by Hydrogen Peroxide[J]. Acta Physico-Chimica Sinica, ;2008, 24(10): 1897-1901. doi: 10.3866/PKU.WHXB20081027 shu

Complex Oscillations in the Oxidation of Sulfide by Hydrogen Peroxide

1.
College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, Jiangsu Province, P. R. China

Received Date: 14 January 2008
Available Online: 7 August 2008

Nonlinear dynamics of the hydrogen peroxide-sulfide reaction was investigated in a continuous flow stirred tank reactor (CSTR), in which various complex oscillations including 11 type, 12 type, mixed-mode and damped oscillations were observed. Perturbation experiments showed that the delay effect of hydrogen ions depended on the oscillatory phase at which the perturbation was applied. Numerical simulations were carried out with a model which was developed thoroughly based on changing oxidation states of sulfur. The calculation qualitatively reproduced the various complex oscillations seen in experiments, suggesting that complex dynamical behaviors could be driven by sulfur (-II) oxidation.
- Complex oscillation; Damped oscillation; Perturbation; Numerical simulation
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