Surface Chemical Reactions

Albano, Ezequiel V.

doi:10.1201/9781420030037.ch8

Cited by 17 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It should be noticed that in the CC ensemble θ CO assumes the role of the control parameter. Further details on the CC method can be found in references [6,11].…”

Section: The Constant Coverage Ensemblementioning

confidence: 99%

“…IPT's in reactive systems take place between an active regime with sustained outcome of the reaction product from the catalytic surface and an absorbing (or poisoned) state where the catalyst becomes fully covered by one or more types of reactants. Since the systems cannot escape from the absorbing state the transitions are irreversible [2,5,6]. The study of IPT's has gained increasing attention in the field of nonequilibrium statistical physics since the pioneering work of Ziff, Gulari and Barshad (ZGB) that introduced a simple lattice model for the catalytic oxidation of CO [7].…”

Section: Introductionmentioning

confidence: 99%

“…In particular, irreversible catalytic reactions exhibit a very rich and complex behavior that includes oscillations, bifurcations, chaos metastability, irreversible phase transitions (IPT's), etc. [3,4,5,6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical study of a first-order irreversible phase transition in a CO+NO catalyzed reaction model

Loscar¹,

Albano²

2002

Phys. Rev. E

View full text Add to dashboard Cite

The first-order irreversible phase transitions (IPT) of the Yaldran-Khan model (Yaldran-Khan, J. Catal. 131, 369, 1991) for the CO + N O reaction is studied using the constant coverage (CC) ensemble and performing epidemic simulations. The CC method allows the study of hysteretic effects close to coexistence as well as the location of both the upper spinodal point and the coexistence point. Epidemic studies show that at coexistence the number of active sites decreases according to a (short-time) power law followed by a (long-time) exponential decay. It is concluded that first-order IPT's share many characteristic of their reversible counterparts, such as the development of short ranged correlations, hysteretic effects, metastabilities, etc.

show abstract

“…It should be noticed that in the CC ensemble θ CO assumes the role of the control parameter. Further details on the CC method can be found in references [6,11].…”

Section: The Constant Coverage Ensemblementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical study of a first-order irreversible phase transition in a CO+NO catalyzed reaction model

Loscar¹,

Albano²

2002

Phys. Rev. E

View full text Add to dashboard Cite

show abstract

“…Details on the ZGB model will be discussed extensively below, see also [15,16]. For P CO ≤ P 1CO ∼ = 0.38975 the surface becomes irreversibly poisoned by O species with θ CO = 0, θ O = 1 and R CO 2 = 0.…”

Section: Absorbing States and Irreversible Phase Transitions (Ipt's)mentioning

confidence: 99%

“…Furthermore, the occurrence of many complex and fascinating physical and chemical phenomena, such as pattern formation and self-organization [1,2], regular and irregular kinetic oscillations [1,2,3,4,5,6], propagation and interference of chemical waves and spatio-temporal structures [7,8], the transition into chaotic behaviour [9,10], fluctuation-induced transitions [11], irreversible phase transitions (IPT's) [12,13,14,15,16], etc, has attracted the attention of many scientists.…”

Section: Introductionmentioning

confidence: 99%

Critical behaviour of irreversible reaction systems

Loscar

Albano

2003

Rep. Prog. Phys.

View full text Add to dashboard Cite

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.

show abstract

Reaction Kinetics in Fractals

Albano¹

2009

Encyclopedia of Complexity and Systems Science

View full text Add to dashboard Cite

Surface Chemical Reactions

Cited by 17 publications

References 0 publications

Numerical study of a first-order irreversible phase transition in a CO+NO catalyzed reaction model

Numerical study of a first-order irreversible phase transition in a CO+NO catalyzed reaction model

Critical behaviour of irreversible reaction systems

Reaction Kinetics in Fractals

Contact Info

Product

Resources

About