Effect of Precursor Mechanism on CO-NO Catalytic Reaction on Body-Centred Cubic Structure： Monte Carlo Simulation  

作　　者：A. U. Qaisrani M. Khalid M. K. Khan 

机构地区：[1]Department of Physics, Gomal University, Dera Ismail Khan, Pakistan [2]Department of Physics, Quaid-i-Azam University, Islamabad, Pakistan

出　　处：《Chinese Physics Letters》2005年第9期2422-2425,共4页中国物理快报（英文版）

摘　　要：The CO-NO catalytic reaction on body-centred cubic （bcc） lattice is studied by Monte Carlo simulation. The simple Langmuir-Hinshelwood （LH） mechanism yields a steady reactive window, which is separated by continuous and discontinuous irreversible phase transitions. The effect of precursor mechanism on the phase diagram of the system is also studied. According to this mechanism, the precursor motion of CO molecules is considered only on the surface of bcc lattice. Some interesting observations are reported.The CO-NO catalytic reaction on body-centred cubic （bcc） lattice is studied by Monte Carlo simulation. The simple Langmuir-Hinshelwood （LH） mechanism yields a steady reactive window, which is separated by continuous and discontinuous irreversible phase transitions. The effect of precursor mechanism on the phase diagram of the system is also studied. According to this mechanism, the precursor motion of CO molecules is considered only on the surface of bcc lattice. Some interesting observations are reported.

关 键 词：KINETIC PHASE-TRANSITIONS SURFACE-REACTION MODEL SUBSURFACE OXYGEN HEXAGONAL SURFACES SQUARE LATTICE REDUCTION PLATINUM PT(100) O-2 

分 类 号：O31[理学—一般力学与力学基础]