Chaos and synchronisation in heterogeneous catalytic systems: CO oxidation over Pd zeolite catalysts

Slinko, M. M.; Ukharskii, A. A.; Peskov, N.V.; Jaeger, N. I.

doi:10.1016/s0920-5861(01)00342-x

Cited by 37 publications

(21 citation statements)

References 24 publications

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“…Oscillatory behaviour in oxidation reactions is a wellknown phenomenon which has been reported several times, particularly in the case of CO oxidation by noble metal catalysts [11][12][13][14][15]. Oscillations in the combustion of heptane were also observed over a Pt/Al 2 O 3 catalyst [16] under some specific reaction conditions and also in the oxidation of methane over a Pd/Al 2 O 3 catalyst [17].…”

Section: Introductionmentioning

confidence: 80%

Oscillations in the catalytic oxidation of volatile organic compounds

Tsou

2004

Journal of Catalysis

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Section: Introductionmentioning

confidence: 80%

Oscillations in the catalytic oxidation of volatile organic compounds

Tsou

2004

Journal of Catalysis

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“…In the study of spatio-temporal self-organization in catalytic oxidation of hydrogen on Pt(111), Ertl et al also suggested that a mesoscopic stochastic model should be used to quantitatively explain the experimental observations [45] . In the study of catalytic oxidation of CO on nanoparticles, Peskov et al pointed out that the difference between the oscillations observed on 4-nm and 10-nm particles was a consequence of the internal noise [46,47] .…”

Section: Nonlinear Dynamics In Mesoscopic Chemical Reaction Systemsmentioning

confidence: 99%

On the study of nonlinear dynamics of complex chemical reaction systems

Xin

Hou

2006

SCI CHINA SER B

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With ever-increasing attentions being paid to complex systems such as the life system, soft matter, and nano-systems, theoretical studies of non-equilibrium nonlinear problems involved in chemical dynamics are now of general interest. In this mini-review, we mainly give a brief introduction to some frontier topics in this field, namely, nonlinear state-state dynamics, nonlinear chemical dynamics on complex networks, and nonlinear dynamics in mesoscopic chemical reaction systems. Deep study of these topics will make great contribution to discovering new laws of chemical dynamics, to exploring new control methods of complex chemical processes, to figuring out the very roles of chemical processes in the life system, and to crosslinking the scientific study of chemistry, physics and biology.When driven far from equilibrium, nonlinear chemical reactions often show a variety of selforganization behavior, including chemical oscillations, waves, chaos and patterns [1] . Recently, the study of such nonlinear phenomena in 'complex' systems, such as the life system and surface systems as soft matter, has drawn growing interest. For example, oscillations of protein concentration in synthetic gene networks, calcium oscillations as well as waves in cardiac tissues, reaction rate oscillations, spiral waves, and spatiotemporal chaos in surface catalytic reactions, have been observed [2][3][4][5][6][7] . It was demonstrated that such 'nonlinear chemistry phenomena (NCP)' play rather important roles in regulating the functioning processes in real systems, including gene expression, signal propagating, neuronal processing, catalytic reactivity as well as selectivity, and so on. Therefore, it is of great importance to study how the NCPs are formed in complex chemical systems, how they transit between each other, and how they perform specific functions in real systems. Such a study will make great contribution to discover new laws of chemical dynamics, to explore new control rules of complex chemical processes, to figure out the very roles of chemical reactions in life systems, and to crosslink the scientific study of chemistry, physics and biology. In this mini-review, based on our own work, we mainly give a brief introduction to some frontier topics in the study of nonlinear dynamics in complex chemical systems, namely, nonlinear state-state dynamics, nonlinear chemical dynamics on complex networks, and nonlinear dynamics in mesoscopic chemical reaction systems.

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“…The effects of external and internal noise in catalytic reactions over single crystal surfaces and nanometer-sized catalyst particles have been of much research interest [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Stochastic resonance (SR) and coherence resonance (CR) by external noise in catalytic reactions on extended single crystal surfaces have been found [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…In the study of spatiotemporal self-organization in the catalytic oxidation of hydrogen on Pt(111), it is suggested that a mesoscopic stochastic model involving internal noise should be used to quantitatively explain the experimental observations [9]. It was demonstrated that the large difference between the reaction dynamical behavior observed on 4-nm and 10-nm palladium particles was a consequence of the interplay between the system's nonlinear dynamics and the internal noise [10][11][12]. Experimental study has shown that coverage fluctuations on catalytic particles can drastically alter their macroscopic catalytic behavior, causing bi-stabilities to vanish completely with decreasing particle size [13].…”

Section: Introductionmentioning

confidence: 99%

Non-Gaussian noise-enhanced stochastic rate oscillations in CO oxidation on nanometer-sized Pd particles

2010

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The effect of non-Gaussian colored noise (NGN), mainly its departure q from the Gaussian noise, on the optimal ISRO of CO oxidation on nanometer-sized Pd particles was studied. It was found that the ISRO in the absence of external noise can still be enhanced when the NGN is applied. Specifically, the ISRO varies with changing q and becomes more regular at an appropriate q value, and when q is optimal, the ISRO becomes the most regular. Because the departure q from the Gaussian noise determines the probability distribution function and hence may denote the types of noise, this result shows that different types of external noise can enhance the ISRO of CO oxidation, and non-Gaussian noise may enhance the ISRO more greatly than the Gaussian noise. Therefore, non-Gaussian noise could play more effective roles in the catalytic process of CO oxidation on nanometer-sized Pd particles.non-Gaussian colored noise, catalytic CO oxidation on nanometer Pd particles, intrinsic stochastic rate oscillation, coherence resonance

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Chaos and synchronisation in heterogeneous catalytic systems: CO oxidation over Pd zeolite catalysts

Cited by 37 publications

References 24 publications

Oscillations in the catalytic oxidation of volatile organic compounds

Oscillations in the catalytic oxidation of volatile organic compounds

On the study of nonlinear dynamics of complex chemical reaction systems

Non-Gaussian noise-enhanced stochastic rate oscillations in CO oxidation on nanometer-sized Pd particles

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