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题名: Dispersion of Catalysts Derived from Intrazeolite Pt Carbonyl Clusters
作者: Li Guangjin1;  Yang Yashu1;  Guo Xiexian1;  Masaru, Ichikawa2
关键词: Zeolites ;  Pt ;  Carbonyl clusters ;  Dispersion
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1994
DOI: 10.3866/PKU.WHXB19940613
卷: 10, 期:6, 页:549-554
收录类别: 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: The catalysts derived from the reduction of intrazeolite Pt carbonyl clusters [Pt-12(CO)(24)](2-)/NaY and [Pt-9(CO)(18)](2-)/NaY were characterized by EXAFS and chemisorption techniques. EXAFS analysis gave RPt-Pt=2.74 angstrom, C.N.=4.2 for Pt-12/NaY and Rpt-pt=2.74 angstrom, C.N.=3.8 for Pt-9/NaY, while the chemisorption of H-2 and CO gave H/Pt=1.26, CO/Pt=0.69 and H/Pt=1.24, CO/Pt=1.26, CO/Pt=0.69 and H/Pt=1.24, CO/Pt=0.64 for Pt-12/NaY and Pt9/NaY respectively. Compared with the results of Pt/Al2O3, it is concluded that highly dispersed Pt/NaY catalysts were derived from the intrazeolite Pt carbonyl clusters. Because of the structureal changes of reduced Pt carbonyl clusters, the recarbonylation of Pt-12/NaY and Pt-9/NaY can not regenerate the same Pt carbonyl clusters as their precursors.
语种: 英语
WOS记录号: WOS:000207589300013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139428
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.Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 060, Japan

Recommended Citation:
Li Guangjin,Yang Yashu,Guo Xiexian,et al. Dispersion of Catalysts Derived from Intrazeolite Pt Carbonyl Clusters[J]. ACTA PHYSICO-CHIMICA SINICA,1994,10(6):549-554.
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