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题名: Mechanismic Study of the Synthesis of Intrazeolite Pt Carbonyl Clusters
作者: Li Guangjin1;  Guo Xiexian1;  Toshiyuki, Fujimoto2;  Masaru, Ichikawa2
关键词: Zeolites ;  Pt ;  Carbonyl clusters ;  (CO)-C-13 exchange ;  EXAFS
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 1994
DOI: 10.3866/PKU.WHXB19940808
卷: 10, 期:8, 页:710-715
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 mechanism of the synthesis of platinum carbonyl clusters Pt-3(CO)(6)](n)(2-) (n=3, 4) in cages of NaY was studied by IR, EXAFS (CO)-C-13 exchange reaction and NO interaction. The results suggest that oxidized Pt species in NaY cages reacts with CO at 304-373K to form PtO(CO) (sigma(CO)-2110cm(-1)) which aggregates into "Pt-3(CO)(6)" (sigma(CO)-2112, 1896 and. 1841cm(-1)) and eventually converts into dark-green carbonyl cluster (Pt-12(CO)(24)](2-). The carbonyl "Pt-3(CO)(6)" can exchange with (CO)-C-13 very quickly at 298K init the exchange reaction between (CO)-C-13 and intrazeolite Pt carbonyl clusters [Pt-3(CO)(0)](n)(2-) (n=3, 4) proceeds slowly even, at enhanced temperature such as 343K. It is interesting to find that NO breaks successively the intra and inter-trigonal lit lit bonds of the Pt-12 carbonyl clusters (even at 298 K) and the "Pt-3(CO)(6)" formed is further reacted to give PtO(CO) with the formation of N2O and CO2 in the gas phase. Pt-2(CO)(24)](2-) can be reversibly regenerated from the Pt subcarbonyls such as PtO(CO) and "Pt-3(CO)(6)" inside NaY by reacting wich CO at 300-353K.
语种: 英语
WOS记录号: WOS:000207589500008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142740
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,Guo Xiexian,Toshiyuki, Fujimoto,et al. Mechanismic Study of the Synthesis of Intrazeolite Pt Carbonyl Clusters[J]. ACTA PHYSICO-CHIMICA SINICA,1994,10(8):710-715.
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