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Hydrogenation of o-chloronitrobenzene over polymer-stabilized palladium-platinum bimetallic colloidal clusters
Yang, XL; Liu, HF; Zhong, H
1999-11-17
Source PublicationJOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN1381-1169
Volume147Issue:1-2Pages:55-62
AbstractHydrogenation of o-chloronitrobenzene (o-CNB) has been studied in methanol at 303 K and atmospheric pressure over polyvinylpyrrolidone-stabilized palladium-platinum (PVP-Pd/Pt) bimetallic colloidal clusters. The catalytic properties for the hydrogenation of o-CNB to o-chloroaniline to-CAN) are found to depend on the metal composition of the bimetallic clusters. All the bimetallic clusters are more active than both PVP-Pd and PVP-Pt monometallic clusters. The highest activity (1.81 mol H-2/mol M s) is obtained when PVP-Pd/Pt (1/2) is used as catalyst. The best selectivity to o-CAN (77.5%) is achieved in PVP-Pd/Pt (1/3) catalytic system, which is much higher than those of PVP-Pt and PVP-Pd monometallic colloidal clusters. The addition of the metal cations to the system can considerably affect the catalytic properties of the bimetallic clusters. The modification behavior of metal cations also depends both on the composition of PVP-Pd/Pt bimetallic clusters and the nature of metal cations. For the PVP-Pd/Pt (1/3) bimetallic clusters, when introducing Cr3+ and Co2+, the high activity (0.96 and 1.03 mol H-2/mol M s) and the better selectivity (91.5 and 91.4%) compared with those of the neat PVP-Pd/Pt (1/3) catalysts (1.03 mol H-2/mol M s and 77.5%) are obtained, respectively. (C) 1999 Elsevier Science B.V. All rights reserved.
KeywordPd/pt Bimetallic Colloid Metal Ion Modifier Hydrogenation O-chloronitrobenzene
Indexed ByISTP ; SCI
Language英语
WOS IDWOS:000083978400009
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:51[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74960
Collection中国科学院化学研究所
Corresponding AuthorLiu, HF
Affiliation1.Chinese Acad Sci, Polymer Chem Lab, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Chem, China PetroChem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Yang, XL,Liu, HF,Zhong, H. Hydrogenation of o-chloronitrobenzene over polymer-stabilized palladium-platinum bimetallic colloidal clusters[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,1999,147(1-2):55-62.
APA Yang, XL,Liu, HF,&Zhong, H.(1999).Hydrogenation of o-chloronitrobenzene over polymer-stabilized palladium-platinum bimetallic colloidal clusters.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,147(1-2),55-62.
MLA Yang, XL,et al."Hydrogenation of o-chloronitrobenzene over polymer-stabilized palladium-platinum bimetallic colloidal clusters".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 147.1-2(1999):55-62.
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