Kinetics of CO oxidation on the surface of heterophase catalysts. Modeling by the Monte Carlo method

被引:10
作者
Savchenko, VI
Efremova, NI
机构
[1] Federal Scientific Center, Boreskov Institute of Catalysis
来源
REACTION KINETICS AND CATALYSIS LETTERS | 1996年 / 57卷 / 01期
关键词
CO oxidation; spillover; Monte Carlo method;
D O I
10.1007/BF02076119
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The Monte Carlo method has been used to simulate CO oxidation on a lattice consisting of various alternating patches: M1, where s(CO) > s(O-2) and M2, where s(CO) < s(O-2). The reaction is shown to proceed over all the surface at low temperature as COads spillover from M1 to M2 and backwards.
引用
收藏
页码:49 / 54
页数:6
相关论文
共 12 条
[1]   MONTE-CARLO SIMULATION OF TEMPERATURE-PROGRAMMED REACTION AND SURFACE EXPLOSION DURING CO OXIDATION ON A PT CATALYST [J].
BOUDEVILLE, Y ;
WOLF, EE .
SURFACE SCIENCE, 1993, 297 (03) :L127-L134
[2]   BOUNDARY EFFECTS IN A SURFACE-REACTION MODEL FOR CO OXIDATION [J].
BROSILOW, BJ ;
GULARI, E ;
ZIFF, RM .
JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (01) :674-677
[3]  
Ehsasi M., 1989, Journal of Chemical Physics, V91, P4949, DOI 10.1063/1.456736
[4]   ZGB SURFACE-REACTION MODEL WITH HIGH DIFFUSION RATES [J].
EVANS, JW .
JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (03) :2463-2465
[5]   2-COMPONENT CATALYSTS FOR LOW-TEMPERATURE CO OXIDATION - A MONTE-CARLO STUDY [J].
HERZ, RK ;
BADLANI, A ;
SCHRYER, DR ;
UPCHURCH, BT .
JOURNAL OF CATALYSIS, 1993, 141 (01) :219-238
[6]   OSCILLATORY REACTIONS ON SINGLE-CRYSTAL SURFACES [J].
IMBIHL, R .
PROGRESS IN SURFACE SCIENCE, 1993, 44 (3-4) :185-343
[7]   MONTE-CARLO MODELING OF A SIMPLE CATALYTIC REACTION-MECHANISM - COMPARISON WITH LANGMUIR KINETICS [J].
LUTSEVICH, LV ;
ELOKHIN, VI ;
MYSHLYAVTSEV, AV ;
USOV, AG ;
YABLONSKII, GS .
JOURNAL OF CATALYSIS, 1991, 132 (02) :302-310
[8]   COADS SPILLOVER AND LOW-TEMPERATURE ACTIVITY OF HETEROPHASE CATALYSTS IN CO OXIDATION [J].
SAVCHENKO, VI .
REACTION KINETICS AND CATALYSIS LETTERS, 1995, 55 (01) :143-151
[9]   ON THE POSSIBLE ROLE OF ADPARTICLES SPILLOVER ON A HETEROPHASE SURFACE IN CAUSING SUPERADDITIVE ACTIVITY [J].
SAVCHENKO, VI ;
DADAYAN, KA .
REACTION KINETICS AND CATALYSIS LETTERS, 1995, 55 (01) :33-40
[10]   THE EFFECTS OF PHASE-TRANSITIONS, SURFACE-DIFFUSION, AND DEFECTS ON SURFACE CATALYZED-REACTIONS - FLUCTUATIONS AND OSCILLATIONS [J].
VLACHOS, DG ;
SCHMIDT, LD ;
ARIS, R .
JOURNAL OF CHEMICAL PHYSICS, 1990, 93 (11) :8306-8313