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题名: Multi-scale phenomena in heterogeneous catalytic processes - impact of chemical phenomena under the micro-scale level on catalyst
作者: Tian, ZJ;  Xu, YP;  Lin, LW
关键词: multi-scale approach ;  heterogeneous catalysis ;  bimetallic catalyst ;  bifunctional catalyst
刊名: CHEMICAL ENGINEERING SCIENCE
发表日期: 2004-04-01
DOI: 10.1016/j.ces.2004.01.030
卷: 59, 期:8-9, 页:1745-1753
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: Catalyst design requires consideration of all the different dimensional scales involved in heterogeneous catalysis. Identifying phenomena at every scale and defining all the dominant mechanisms are of significance to the multi-scale analysis. Rather than systematically summarizing all the principles of catalyst design encountered at every dimensional scale, the impact of chemical phenomena under the levels of nano-scale and subnano-scale (micro-scale) on catalyst design is illustrated in this paper with two examples in detail. The demonstrations are based on the recent advances of the surface structure and reaction performance of a commercially important PtSn/Al2O3 catalyst for reforming and dehydrogenation of hydrocarbons, and the dehydro-aromatization of methane in the absence of oxygen over a recently explored Mo/HZSM-5 catalyst. The studies of these two cases include the interaction among active components and the synergy between active sites on the catalyst surface. Emphasis is given to the realization and understanding of solid catalyst structure and catalytic performance under the micro-scale level through the use of advanced analytical techniques. (C) 2004 Elsevier Ltd. All rights reserved.
关键词[WOS]: MO-BASED CATALYSTS ;  METHANE AROMATIZATION ;  NONOXIDATIVE CONVERSION ;  MO2C/MO(111) SURFACE ;  MULTIPHASE REACTIONS ;  HZSM-5 ZEOLITE ;  OXIDE SURFACES ;  ACID SITES ;  DESIGN ;  DEHYDROGENATION
语种: 英语
WOS记录号: WOS:000221628600013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139454
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 Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Tian, ZJ,Xu, YP,Lin, LW. Multi-scale phenomena in heterogeneous catalytic processes - impact of chemical phenomena under the micro-scale level on catalyst[J]. CHEMICAL ENGINEERING SCIENCE,2004,59(8-9):1745-1753.
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