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Stochastic bi-resonance in non-isothermal carbon monoxide catalytic oxidation system

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Abstract

The Pt(110)/CO+O2 system subject to reaction heat, heat conduction and radiative heat transfer is non-isothermal and its temperature varies in time and space. In this paper, taking support temperature (ST) as the control parameter, the effect of the ST fluctuations in the oscillatory dynamics of the non-isothermal Pt(110)/CO+O2 system is numerically studied. It is found that the ST fluctuations may induce stochastic oscillations and the oscillations exhibit stochastic bi-resonance (SBR) with the change of the strength or correlation time of the fluctuations. This result shows that the temperature fluctuations may enhance the chemical reaction oscillations. Moreover, the system can selectively and repeatedly employ the temperature fluctuations to enhance its reaction oscillations. It is also shown when the distance of the ST temperature to the oscillatory region increases a little, the effect of the temperature fluctuations would obviously weaken.

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Authors and Affiliations

  1. School of Physics & Electronic Engineering, Ludong University, Yantai, 264025, China

    Gong YuBing, Xu Bo, Xu XiuWei & Liu ShengDian

  2. School of Photoelectricity Information Science Technology, Yantai University, Yantai, 264005, China

    Han JiQu

Authors
  1. Gong YuBing
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  2. Xu Bo
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  3. Han JiQu
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  4. Xu XiuWei
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  5. Liu ShengDian
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Corresponding author

Correspondence to Gong YuBing.

Additional information

Supported by the Science Foundation of Ludong University (Grant No. 23140301, L20072805)

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Gong, Y., Xu, B., Han, J. et al. Stochastic bi-resonance in non-isothermal carbon monoxide catalytic oxidation system. Sci. China Ser. B-Chem. 50, 731–736 (2007). https://doi.org/10.1007/s11426-007-0083-z

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  • DOI: https://doi.org/10.1007/s11426-007-0083-z

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