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Dispersion of Catalysts Derived from Intrazeolite Pt Carbonyl Clusters
Li Guangjin1; Yang Yashu1; Guo Xiexian1; Masaru, Ichikawa2
关键词Zeolites Pt Carbonyl Clusters Dispersion
刊名ACTA PHYSICO-CHIMICA SINICA
1994
DOI10.3866/PKU.WHXB19940613
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
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139428
专题中国科学院大连化学物理研究所
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
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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.
APA Li Guangjin,Yang Yashu,Guo Xiexian,&Masaru, Ichikawa.(1994).Dispersion of Catalysts Derived from Intrazeolite Pt Carbonyl Clusters.ACTA PHYSICO-CHIMICA SINICA,10(6),549-554.
MLA Li Guangjin,et al."Dispersion of Catalysts Derived from Intrazeolite Pt Carbonyl Clusters".ACTA PHYSICO-CHIMICA SINICA 10.6(1994):549-554.
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