Dynamic studies of surface reactions with microscopic techniques

Block, J.H.; Ehsasi, M.; Городецкий, В. В.

doi:10.1016/0079-6816(93)90067-6

Cited by 40 publications

(30 citation statements)

References 21 publications

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“…Some of the additional mechanisms and modifications added to the original model are the following: (i) The inclusion of CO desorption [18,19,105,106,107] that causes the first-order IPT to become reversible and slightly rounded, in qualitative agreement with experiments (figures 9 and 10). (ii) Energetic interactions between reactants adsorbed on the catalyst surface have been considered by various authors [105,108,109].…”

Section: N(t)(t/t)**2supporting

confidence: 57%

“…These models exhibit many features characteristic of first-order IPT's that have also been found in numerous experiments, such as hysteretic effects [17,77] and abrupt changes of relevant properties when a control parameter is tuned around a coexistence point [17,18,19] (see also figure 2), etc. On view of these facts, special attention will be drawn to the discussion of first-order ITP's.…”

Section: Critical Behaviour Of Specific Reaction Systemsmentioning

confidence: 99%

“…So far, all those simulations of the ZGB model discussed above do not attempt to describe the occurrence of oscillations in the concentration of the reactants and in the rate of production, which are well documented by numerous experiments [3,5,18,19].…”

Section: N(t)(t/t)**2mentioning

confidence: 99%

“…Experiments corresponding to the catalytic oxidation of CO on P t(111) single crystal, performed keeping the oxygen partial pressure constant (P O = 2.0 −6 Torr) and varying the temperature of the catalyst, as shown in the figure. Adapted from references [18,19].…”

Section: The Catalytic Oxidation Of Carbon Monoxidementioning

confidence: 99%

“…[17,18,19], just to quote few of them, allows the scientists to gather detailed physical and chemical information about surfaces, adsorbates and reaction products. Within this context, the STM based measurement of the reaction rate parameters at a microscopic level for the catalytic oxidation of CO [20] is a clear example of the progress recently achieved.…”

Section: Scanning Tunneling Microscopy (Stm) Low Energy Electron Difmentioning

confidence: 99%

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Critical behaviour of irreversible reaction systems

Loscar

Albano

2003

Rep. Prog. Phys.

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An introductory review on the critical behaviour of some irreversible reaction systems is presented. The study of these systems has attracted great attention during the last decades due to, on the one hand, the rich and complex underlying physics, and, on the other, their relevance to numerous technological applications in heterogeneous catalysis, corrosion and coating, development of microelectronic devices, etc. The review focuses on recent advances in the understanding of irreversible phase transitions (IPTs), providing a survey of the theoretical development in the field during the last decade, as well as a detailed discussion of relevant numerical simulations. The Langevin formulation for the treatment of second-order IPTs is discussed. Different Monte Carlo (MC) approaches are also presented in detail and the finite-size-scaling analysis of second-order IPTs is described. Special attention is devoted to the description of the recent progress in the study of first-order IPTs observed upon catalytic oxidation of carbon monoxide and the reduction of nitrogen monoxide, using lattice gas reaction models. Only brief comments are given on other reactions such as the oxidation of hydrogen, ammonia synthesis. Also, a discussion of relevant experiments is presented and measurements are compared with the numerical results. Furthermore, promising areas for further research and open questions are also addressed.

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Section: N(t)(t/t)**2supporting

confidence: 57%

Section: Critical Behaviour Of Specific Reaction Systemsmentioning

confidence: 99%

Section: N(t)(t/t)**2mentioning

confidence: 99%

Section: The Catalytic Oxidation Of Carbon Monoxidementioning

confidence: 99%

Section: Scanning Tunneling Microscopy (Stm) Low Energy Electron Difmentioning

confidence: 99%

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Critical behaviour of irreversible reaction systems

Loscar

Albano

2003

Rep. Prog. Phys.

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Elementary Steps and Mechanisms: Sections 5.3 – 5.5

Kraus¹,

Pajonk²,

Sachtler³

et al. 1997

Handbook of Heterogeneous Catalysis

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Phase diagrams of the Ziff–Gulari–Barshad model on random networks

et al. 2020

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In this study, we revisited the Ziff–Gulari–Barshad (ZGB) model in order to study the behavior of its phase diagram when two well‐known random networks play the role of the catalytic surfaces: the random geometric graph and the Erdös–Rényi network. The connectivity and, therefore, the average number of neighbors of the nodes of these networks can vary according to their control parameters, the neighborhood radius α, and the linking probability p, respectively. In addition, the catalytic reactions of the ZGB model are governed by the parameter y, the adsorption rate of carbon monoxide molecules on the catalytic surface. So, to study the phase diagrams of the model on both random networks, we carried out extensive steady‐state Monte Carlo simulations in the space parameters (y, α) and (y, p) and showed that the continuous phase transition is greatly affected by the topological features of the networks while the discontinuous one remains present in the diagram throughout the interval of study.

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Dynamic studies of surface reactions with microscopic techniques

Cited by 40 publications

References 21 publications

Critical behaviour of irreversible reaction systems

Critical behaviour of irreversible reaction systems

Elementary Steps and Mechanisms: Sections 5.3 – 5.5

Phase diagrams of the Ziff–Gulari–Barshad model on random networks

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