| 内涨落对Pt表面CO催化氧化反应动力学行为的影响 |
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| 引用本文： | 李红英.内涨落对Pt表面CO催化氧化反应动力学行为的影响[J].安徽教育学院学报,2010,28(6). |
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| 作者姓名： | 李红英 |
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| 作者单位： | 合肥师范学院化学化工系,安徽,合肥,230061 |
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| 基金项目： | 安徽高校省级自然科学研究项目 |
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| 摘 要： | 通过构建一个Pt表面CO氧化的介观随机模型,讨论了内噪声对催化反应动力学行为的影响。研究发现:内噪声可以诱导体系中CO的覆盖度发生振荡,从而引起反应速率的振荡。并且存在两个最佳的体系尺度,使得振荡的规则程度最佳,说明了尺度双共振或内噪声双共振现象的发生。利用这种速率振荡可以提高反应的产率和选择性,这是化工生产的一种新方法,也是化学振荡在工业生产中的重要应用。
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| 关 键 词： | CO氧化 内噪声 振荡 尺度双共振 内噪声双共振 |
Effect of Internal Noise on the Dynamics of CO Oxidation Reaction on Pt Surfaces |
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| LI Hong-ying.Effect of Internal Noise on the Dynamics of CO Oxidation Reaction on Pt Surfaces[J].Journal of Anhui Institute of Education,2010,28(6). |
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| Authors: | LI Hong-ying |
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| Institution: | LI Hong-ying(Department of Chemistry & Chemical Engineering,Hefei Normal University,Hefei 230061,China) |
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| Abstract: | By constructing a mesoscopic stochastic model for CO oxidation reaction on Pt surfaces,we investigate the influence of internal noise on the dynamics of the system.It is found that internal noise can induce the oscillations of the coverage of CO,and then induce the oscillations of the reaction rate.And there exist two system sizes,at which the oscillations show the best performance,indicating the occurrence of system size bi-resonance or internal noise stochastic bi-resonance.The productivity and selectivit... |
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| Keywords: | CO oxidation internal noise oscillations system size bi-resonance internal noise stochastic bi-resonance |
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