高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (12): 2331.

• 研究论文 • 上一篇    下一篇

色噪声性质对一氧化氮还原反应体系随机共振的影响

龚玉兵1,2,侯中怀1,辛厚文1   

  1. 1.中国科学技术大学化学物理系,合肥230026;2.烟台师范学院物理系,烟台264025
  • 收稿日期:2004-12-27 出版日期:1905-03-14 发布日期:1905-03-14
  • 通讯作者: 辛厚文(1935年出生)，男，教授，博士生导师，主要从事复杂体系中重要非线性问题的理论研究.E-mail:nclxin@mail.ustc.edu.cn
  • 基金资助:

    国家自然科学基金(批准号：20173052，20203017，20433050)资助.

Influence of Properties of Colored Noise on Stochastic Resonance in Pt(100)/NO+CO Reduction System

GONG Yu-Bing1,2, HOU Zhong-Huai1, XIN Hou-Wen1*   

  1. 1. Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;
    2. Department of Physics, Yantai Teachers College, Yantai 264025, China
  • Received:2004-12-27 Online:1905-03-14 Published:1905-03-14
  • Contact: XIN Hou-Wen;E-mail:nclxin@mail.ustc.edu.cn

被引次数

11

摘要：

研究了一定温度条件下和NO气体偏压pNO处在超临界Hopf分岔点附近时,Pt(100)/NO+CO表面催化还原反应体系被色噪声调制后的动力学行为.通过计算机模拟,观察到了色噪声诱导的反应振荡和随机共振现象.探讨了色噪声强度和相关时间对随机共振行为的影响,得到一些新的结果.

关键词: 色噪声；随机共振;Pt(100)/NO+CO反应体系;超临界Hopf分岔, 色噪声, 随机共振, Pt(100)/NO+CO反应体系, 超临界Hopf分岔

Abstract:

Under the conditions of constant temperature and the value of NO partial pressure pNO which is tuned close to Hopf bifurcation point, the dynamics of Pt(100)/NO+CO system modulated by colored noise is studied. The colored noise-induced oscillations and the stochastic resonance are observed by using numerical simulations. The influences of intensity and correlation time of colored noise on the stochastic resonance are discussed. A novel result is found that the noise intensity for the occurrence of stochastic resonance initially increases and then decreases with increasing the fixed correlation time.

Key words: Colored noise; Stochastic resonance; Pt(100)/NO+CO reaction system; Supercritical Hopf bifurcation, Colored noise, Stochastic resonance, Pt(100)/NO+CO reaction system, Supercritical Hopf bifurcation

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