CO-NO catalytic surface reaction on body-centered cubic structure: Monte Carlo study

被引:0
作者
Khalid, M [1 ]
Qaisrani, AU
Khan, MK
机构
[1] Gomal Univ, Dept Phys, Dera Ismail Khan, Pakistan
[2] Quaid I Azam Univ, Dept Phys, Islamabad, Pakistan
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS C | 2005年 / 16卷 / 08期
关键词
Eley-Rideal process; Monte Carlo simulation; phase diagram; catalytic reaction; carbon monoxide; nitrogen oxide;
D O I
10.1142/S012918310500790X
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A Monte Carlo Simulation study of the monomer dimer (CO-NO) heterogeneous catalytic reaction on body-centered cubic structure (BCC) is presented. The effect of Eley-Rideal (ER), diffusion of nitrogen and carbon monoxide on the phase diagram is investigated. The steady reactive state is observed while using Langmuir-Hinsehelwood (LH) mechanism. Whenever the ER mechanism is included in our simulation, the production Of CO2 starts as soon as y(CO) departs from zero, which is consistent with the experimental results. The ER mechanism does not affect the production of N-2. The effect of diffusion of CO and N are found very little on the steady state reactive region where the concentration of CbO is very high.
引用
收藏
页码:1279 / 1291
页数:13
相关论文
共 24 条
[1]   Subsurface oxygen in monomer-dimer catalytic reaction: Influence of second and third nearest neighbourhood [J].
Ahmad, N ;
Khan, KM .
CHEMICAL PHYSICS, 2001, 263 (2-3) :339-346
[2]   ON THE SELF-POISONING OF SMALL PARTICLES UPON ISLAND FORMATION OF THE REACTANTS IN A MODEL FOR A HETEROGENEOUSLY CATALYZED REACTION [J].
ALBANO, EV .
JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (02) :1499-1504
[3]   KINETIC PHASE-TRANSITIONS IN A SURFACE-REACTION MODEL WITH LOCAL INTERACTIONS [J].
BAGNOLI, F ;
SENTE, B ;
DUMONT, M ;
DAGONNIER, R .
JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (01) :777-780
[4]  
Böttcher A, 1999, PHYS STATUS SOLIDI A, V173, P101, DOI 10.1002/(SICI)1521-396X(199905)173:1<101::AID-PSSA101>3.0.CO
[5]  
2-R
[6]   NO-CO REACTION ON SQUARE AND HEXAGONAL SURFACES - A MONTE-CARLO SIMULATION - COMMENT [J].
BROSILOW, BJ ;
ZIFF, RM .
JOURNAL OF CATALYSIS, 1992, 136 (01) :275-278
[7]   ON KINETIC PHASE-TRANSITIONS IN SURFACE-REACTIONS [J].
DUMONT, M ;
DUFOUR, P ;
SENTE, B ;
DAGONNIER, R .
JOURNAL OF CATALYSIS, 1990, 122 (01) :95-112
[8]   THE MECHANISM OF THE EXPLOSIVE NO+CO REACTION ON PT(100) - EXPERIMENTS AND MATHEMATICAL-MODELING [J].
FINK, T ;
DATH, JP ;
BASSETT, MR ;
IMBIHL, R ;
ERTL, G .
SURFACE SCIENCE, 1991, 245 (1-2) :96-110
[9]   OSCILLATORY KINETICS IN HETEROGENEOUS CATALYSIS [J].
IMBIHL, R ;
ERTL, G .
CHEMICAL REVIEWS, 1995, 95 (03) :697-733
[10]   KINETIC PHASE-TRANSITIONS IN A SURFACE-REACTION MODEL WITH DIFFUSION - COMPUTER-SIMULATIONS AND MEAN-FIELD THEORY [J].
JENSEN, I ;
FOGEDBY, HC .
PHYSICAL REVIEW A, 1990, 42 (04) :1969-1975