TIME EVOLUTION OF THE CATALYTIC-OXIDATION OF CARBON-MONOXIDE ON A DISORDERED SUBSTRATUM

被引：21

作者：

ALBANO, EV

机构：

[1] Inst. de Investaciones Fisicoquimicas Teoricas Y Aplicadas, Univ. Nacional de la Plata

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1990年 / 23卷 / 11期

关键词：

D O I：

10.1088/0305-4470/23/11/006

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The time evolution of the reactant concentrations, the rate of production and the concentration of vacancies around islands of the minority species, in a model for the catalytic oxidation of carbon monoxide, is studied on percolation clusters by means of Monte Carlo simulations and scaling arguments. The model exhibits two kinetic transitions and the relevant exponents for the time evolution of the above-mentioned quantities are evaluated at criticality. The influence of the fractal substratum on the behaviour of the reaction is discussed and compared with reported results for homogeneous media.

引用

页码：L545 / L549

页数：5

共 12 条

[1] ALBANO EV, 1990, IN PRESS SURF SCI
[2] [Anonymous], 1979, ADV CATAL, DOI DOI 10.1016/S0360-0564(08)60133-9
[3] MOLECULAR FRACTAL SURFACES
AVNIR, D
FARIN, D
PFEIFER, P
[J]. NATURE, 1984, 308 (5956) : 261 - 263
[4] EHSAI E, 1989, SURF SCI, V210, pL198
[5] FRAIN D, 1988, J AM CHEM SOC, V110, P2039
[6] ISLAND MODELS AND THE CATALYTIC-OXIDATION OF CARBON-MONOXIDE
GRAHAM, WRC
LYNCH, DT
[J]. SURFACE SCIENCE, 1987, 187 (01) : L633 - L638
[7] SIMPLE-MODELS FOR HETEROGENEOUS CATALYSIS - PHASE TRANSITION-LIKE BEHAVIOR IN NONEQUILIBRIUM SYSTEMS
MEAKIN, P
SCALAPINO, DJ
[J]. JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (01) : 731 - 741
[8] ISLAND MODELS AND THE CATALYTIC-OXIDATION OF CARBON-MONOXIDE AND CARBON-MONOXIDE OLEFIN MIXTURES
MUKESH, D
MORTON, W
KENNEY, CN
CUTLIP, MB
[J]. SURFACE SCIENCE, 1984, 138 (01) : 237 - 257
[9] SURFACE FRACTAL DIMENSION OF SMALL METALLIC PARTICLES
ROMEU, D
GOMEZ, A
PEREZRAMIREZ, JG
SILVA, R
PEREZ, OL
GONZALEZ, AE
JOSEYACAMAN, M
[J]. PHYSICAL REVIEW LETTERS, 1986, 57 (20) : 2552 - 2555
[10] TIME EVOLUTION OF AN IRREVERSIBLE CATALYTIC RECOMBINATION PROCESS
SADIQ, A
YALDRAM, K
[J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1988, 21 (04): : L207 - L211

← 1 2 →