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题名: Simulation of inverse spillover in steam reforming of methane and water-gas shift with the Monte Carlo method
作者: Wang, DZ;  Liang, DB;  Li, C;  Xin, Q
刊名: SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS
发表日期: 1997
卷: 112, 页:367-376
收录类别: ISTP ;  SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: A direct simulation Monte Carlo method is used to study the effect of spillover on reaction kinetics. Two spillover models were considered: (1) surface diffusion via the hopping of adsorbed molecules, and (2) surface migration via hopping of weakly adsorbed precursors above the layer of adsorbed molecules. Spillover retards the reaction when the surface coverage of the spiltover species is high, but it accelerates the reaction when this surface coverage is low. Spillover also results in small but discernible changes in measured apparent activation energies and heats of adsorption. The effect of spillover is more pronounced in the mechanism where the diffusing species is a weakly adsorbed precursor than when the diffusing species is the adsorbed species themselves.
关键词[WOS]: DIFFUSION
语种: 英语
WOS记录号: WOS:000071952700040
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142828
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Catalysis Met & New Mat, Dalian 116023, Peoples R China

Recommended Citation:
Wang, DZ,Liang, DB,Li, C,et al. Simulation of inverse spillover in steam reforming of methane and water-gas shift with the Monte Carlo method[J]. SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS,1997,112:367-376.
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