Influence of metal ions on hydrogenation of o-chloronitrobenzene over platinum colloidal clusters

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	Influence of metal ions on hydrogenation of o-chloronitrobenzene over platinum colloidal clusters
	Yang, XL ; Liu, HF
刊名	APPLIED CATALYSIS A-GENERAL
	1997-12-23
卷号	164 期号:1-2 页码:197-203
关键词	Hydrogenation Platinum Cluster Metal Ion Modifier O-chloronitrobenzene
ISSN号	0926-860X
英文摘要	Hydrogenation of o-chloronitrobenzene has been studied in methanol at 303 K and atmospheric pressure over polyvinylpyrrolidone-stabilized platinum colloidal clusters. The catalytic properties of platinum clusters for the hydrogenation of o-chloronitrobenzene to o-chloroaniline were remarkably affected by the metallic cations added. Among these cations, the most favorable influence on activity and selectivity was obtained when Ni2+ ions were used as modifier. The selectivity for o-chloroaniline was increased from 44.7% without a modifier to 66.3% when Ni2+ ions were introduced into the catalyst system, while the activity of the catalyst was nearly doubled by the addition of Ni2+ ion (the average rate of hydrogenation increased from 0.34 mol H-2/mol Pt s on neat platinum cluster to 0.64 mol H-2/mol Pt s on the Pt-Ni2+ system). The highest activity (0.72 mol H-2/mol Pt s) and selectivity (82.9%) to o-chloroaniline was obtained when the molar ratio of Ni2+/Pt was 8. (C) 1997 Elsevier Science B.V.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000070990200018
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/74145]
专题	中国科学院化学研究所
通讯作者	Liu, HF
作者单位	1.Chinese Acad Sci, Polymer Chem Lab, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, China Petrochem Corp, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Yang, XL,Liu, HF. Influence of metal ions on hydrogenation of o-chloronitrobenzene over platinum colloidal clusters[J]. APPLIED CATALYSIS A-GENERAL,1997,164(1-2):197-203.
APA	Yang, XL,&Liu, HF.(1997).Influence of metal ions on hydrogenation of o-chloronitrobenzene over platinum colloidal clusters.APPLIED CATALYSIS A-GENERAL,164(1-2),197-203.
MLA	Yang, XL,et al."Influence of metal ions on hydrogenation of o-chloronitrobenzene over platinum colloidal clusters".APPLIED CATALYSIS A-GENERAL 164.1-2(1997):197-203.