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题名: Graphitic nanofilaments as novel support of Ru-Ba catalysts for ammonia synthesis
作者: Liang, CH;  Li, ZL;  Qiu, JS;  Li, C
关键词: graphitic nanofilaments ;  barium ;  ammonia synthesis ;  ruthenium
刊名: JOURNAL OF CATALYSIS
发表日期: 2002-10-01
DOI: 10.1006/jcat.2002.3724
卷: 211, 期:1, 页:278-282
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: A novel graphitic-nanofilament-(GNF-) supported Ru-Ba catalyst is prepared and used in ammonia synthesis reaction. The Ru-Ba/GNFs catalyst shows remarkably high activity and stability for ammonia synthesis, which can be attributed to high purity and graphitization of GNFs with unique structure. TEM micrographs of the Ru-Ba/GNFs catalysts show that Ru metal particles uniformly disperse on the outer wall of GNFs, and the particles become bigger than that before ammonia synthesis reaction after 50 h of operation at 500degreesC and 7.0 MPa, probably due to the Ru crystals covered by promoter and support materials and/or sintering of Ru crystals. (C) 2002 Elsevier Science (USA).
关键词[WOS]: HETEROGENEOUS CATALYSIS ;  ATMOSPHERIC-PRESSURE ;  RUTHENIUM CATALYSTS ;  N-2 ;  ACTIVATION ;  NANOFIBERS ;  NANOTUBES ;  KINETICS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000178377800030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/84953
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.Dalian Univ Technol, Dept Mat & Chem Engn, Dalian 116012, Peoples R China

Recommended Citation:
Liang, CH,Li, ZL,Qiu, JS,et al. Graphitic nanofilaments as novel support of Ru-Ba catalysts for ammonia synthesis[J]. JOURNAL OF CATALYSIS,2002,211(1):278-282.
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